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[Bug 1804636] [NEW] Gimp crashes when choosing export file extension with keyboard letter

 

Public bug reported:

```
GNU Image Manipulation Program version 2.10.6
git-describe: GIMP_2_10_4-278-g0a8173ffde
C compiler:
	Using built-in specs.
	COLLECT_GCC=gcc
	COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper
	OFFLOAD_TARGET_NAMES=nvptx-none
	OFFLOAD_TARGET_DEFAULT=1
	Target: x86_64-linux-gnu
	Configured with: ../src/configure -v --with-pkgversion='Ubuntu 8.2.0-4ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
	Thread model: posix
	gcc version 8.2.0 (Ubuntu 8.2.0-4ubuntu1) 
	
using GEGL version 0.4.8 (compiled against version 0.4.8)
using GLib version 2.58.1 (compiled against version 2.57.2)
using GdkPixbuf version 2.38.0 (compiled against version 2.36.12)
using GTK+ version 2.24.32 (compiled against version 2.24.32)
using Pango version 1.42.3 (compiled against version 1.42.3)
using Fontconfig version 2.13.0 (compiled against version 2.13.0)
using Cairo version 1.15.12 (compiled against version 1.15.12)

```
> fatal error: Segmentation fault

Stack trace:
```

# Stack traces obtained from PID 20491 - Thread 20491 #

[New LWP 20493]
[New LWP 20494]
[New LWP 20496]
[New LWP 20497]
[New LWP 20498]
[New LWP 20499]
[New LWP 20500]
[New LWP 20501]
[New LWP 20502]
[New LWP 20503]
[New LWP 20529]
[New LWP 20633]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__libc_read (fd=20, buf=0x7fff75f42b50, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:26
  Id   Target Id                                       Frame 
* 1    Thread 0x7fe202137e00 (LWP 20491) "gimp-2.10"   __libc_read (fd=20, buf=0x7fff75f42b50, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:26
  2    Thread 0x7fe200876700 (LWP 20493) "gmain"       0x00007fe204fbd6d9 in __GI___poll (fds=0x55eb51b1c6c0, nfds=2, timeout=3382) at ../sysdeps/unix/sysv/linux/poll.c:29
  3    Thread 0x7fe1fe510700 (LWP 20494) "gdbus"       0x00007fe204fbd6d9 in __GI___poll (fds=0x55eb51b33870, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  4    Thread 0x7fe1e8e57700 (LWP 20496) "async"       syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  5    Thread 0x7fe1e8656700 (LWP 20497) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  6    Thread 0x7fe1e7e55700 (LWP 20498) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  7    Thread 0x7fe1e7654700 (LWP 20499) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  8    Thread 0x7fe1e6e53700 (LWP 20500) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  9    Thread 0x7fe1e6652700 (LWP 20501) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  10   Thread 0x7fe1e5e51700 (LWP 20502) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  11   Thread 0x7fe1e5650700 (LWP 20503) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  12   Thread 0x7fe1dc88f700 (LWP 20529) "swap writer" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  13   Thread 0x7fe1c3fff700 (LWP 20633) "pool"        syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38

Thread 13 (Thread 0x7fe1c3fff700 (LWP 20633)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db75a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe205267061 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe205267621 in g_async_queue_timeout_pop () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2052bdb71 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140607632701184, -4311207730762189470, 140735172322686, 140735172322687, 140735172322816, 140607632697600, 4316705288607528290, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fe1dc88f700 (LWP 20529)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe205d4a375 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
#3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608044332800, -4311207730762189470, 140735172325454, 140735172325455, 140735172325584, 140608044329216, 4316764533386409314, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fe1e5650700 (LWP 20503)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055eb509ef673 in  ()
#3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608192972544, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608192968960, 4316781198396388706, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fe1e5e51700 (LWP 20502)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055eb509ef673 in  ()
#3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608201365248, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608201361664, 4316780108011566434, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fe1e6652700 (LWP 20501)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055eb509ef673 in  ()
#3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608209757952, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608209754368, 4316787805129831778, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fe1e6e53700 (LWP 20500)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055eb509ef673 in  ()
#3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608218150656, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608218147072, 4316786706155074914, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fe1e7654700 (LWP 20499)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055eb509ef673 in  ()
#3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608226543360, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608226539776, 4316785607180318050, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fe1e7e55700 (LWP 20498)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055eb509ef673 in  ()
#3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608234936064, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608234932480, 4316784508205561186, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fe1e8656700 (LWP 20497)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055eb509ef673 in  ()
#3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608243328768, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608243325184, 4316792205323826530, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fe1e8e57700 (LWP 20496)):
#0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055eb509ef48a in  ()
#3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608251721472, -4311207730762189470, 140735172331598, 140735172331599, 140735172331728, 140608251717888, 4316791106349069666, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fe1fe510700 (LWP 20494)):
#0  0x00007fe204fbd6d9 in __GI___poll (fds=0x55eb51b33870, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fe205294e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe2052951d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe205c107b6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608611092224, -4311207730762189470, 140735172331694, 140735172331695, 140735172331824, 140608611088640, 4316840743822980450, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fe200876700 (LWP 20493)):
#0  0x00007fe204fbd6d9 in __GI___poll (fds=0x55eb51b1c6c0, nfds=2, timeout=3382) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fe205294e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe205294f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe205294fb1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608648210176, -4311207730762189470, 140735172331294, 140735172331295, 140735172331424, 140608648206592, 4318813949509268834, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fe202137e00 (LWP 20491)):
#0  0x00007fe2050aac24 in __libc_read (fd=20, buf=0x7fff75f42b50, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:26
        resultvar = 18446744073709551104
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
        nbytes = 256
        fd = 20
        buf = 0x7fff75f42b50
#1  0x00007fe20631f7d4 in gimp_stack_trace_print () at /usr/lib/libgimpbase-2.0.so.0
#2  0x000055eb5072d2a0 in  ()
#3  0x000055eb5072d6d8 in  ()
#4  0x000055eb5072de37 in  ()
#5  0x00007fe2050abdd0 in <signal handler called> () at /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fe206510135 in gtk_file_chooser_set_filter () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#7  0x000055eb508b6fda in  ()
#8  0x00007fe205374b6d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9  0x00007fe2053878f3 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007fe205390882 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007fe205390ecf in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#12 0x00007fe205374b6d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#13 0x00007fe2053878f3 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#14 0x00007fe205390882 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#15 0x00007fe205390ecf in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#16 0x00007fe20666f5c7 in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#17 0x00007fe20666f7ed in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#18 0x00007fe20666faef in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#19 0x00007fe20656fcfb in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#20 0x00007fe205374a81 in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#21 0x00007fe205387124 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#22 0x00007fe20538ff43 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#23 0x00007fe205390ecf in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#24 0x00007fe20668700c in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#25 0x00007fe20669a8c8 in gtk_window_propagate_key_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#26 0x00007fe20669d49b in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#27 0x00007fe20656fcfb in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#28 0x00007fe205374b6d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#29 0x00007fe205387124 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#30 0x00007fe20538ff43 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#31 0x00007fe205390ecf in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#32 0x00007fe20668700c in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#33 0x00007fe20656e06d in gtk_propagate_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#34 0x00007fe20656e38b in gtk_main_do_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#35 0x00007fe2063e0ccc in  () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
#36 0x00007fe205294c3e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fe205294ed8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fe2052951d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x000055eb5072cacf in app_run ()
#40 0x000055eb5072c3d5 in main ()
[Inferior 1 (process 20491) detached]

```

** Affects: gimp (Ubuntu)
     Importance: Undecided
         Status: New

-- 
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https://bugs.launchpad.net/bugs/1804636

Title:
  Gimp crashes when choosing export file extension with keyboard letter

Status in gimp package in Ubuntu:
  New

Bug description:
  ```
  GNU Image Manipulation Program version 2.10.6
  git-describe: GIMP_2_10_4-278-g0a8173ffde
  C compiler:
  	Using built-in specs.
  	COLLECT_GCC=gcc
  	COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper
  	OFFLOAD_TARGET_NAMES=nvptx-none
  	OFFLOAD_TARGET_DEFAULT=1
  	Target: x86_64-linux-gnu
  	Configured with: ../src/configure -v --with-pkgversion='Ubuntu 8.2.0-4ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
  	Thread model: posix
  	gcc version 8.2.0 (Ubuntu 8.2.0-4ubuntu1) 
  	
  using GEGL version 0.4.8 (compiled against version 0.4.8)
  using GLib version 2.58.1 (compiled against version 2.57.2)
  using GdkPixbuf version 2.38.0 (compiled against version 2.36.12)
  using GTK+ version 2.24.32 (compiled against version 2.24.32)
  using Pango version 1.42.3 (compiled against version 1.42.3)
  using Fontconfig version 2.13.0 (compiled against version 2.13.0)
  using Cairo version 1.15.12 (compiled against version 1.15.12)

  ```
  > fatal error: Segmentation fault

  Stack trace:
  ```

  # Stack traces obtained from PID 20491 - Thread 20491 #

  [New LWP 20493]
  [New LWP 20494]
  [New LWP 20496]
  [New LWP 20497]
  [New LWP 20498]
  [New LWP 20499]
  [New LWP 20500]
  [New LWP 20501]
  [New LWP 20502]
  [New LWP 20503]
  [New LWP 20529]
  [New LWP 20633]
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
  __libc_read (fd=20, buf=0x7fff75f42b50, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:26
    Id   Target Id                                       Frame 
  * 1    Thread 0x7fe202137e00 (LWP 20491) "gimp-2.10"   __libc_read (fd=20, buf=0x7fff75f42b50, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:26
    2    Thread 0x7fe200876700 (LWP 20493) "gmain"       0x00007fe204fbd6d9 in __GI___poll (fds=0x55eb51b1c6c0, nfds=2, timeout=3382) at ../sysdeps/unix/sysv/linux/poll.c:29
    3    Thread 0x7fe1fe510700 (LWP 20494) "gdbus"       0x00007fe204fbd6d9 in __GI___poll (fds=0x55eb51b33870, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
    4    Thread 0x7fe1e8e57700 (LWP 20496) "async"       syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    5    Thread 0x7fe1e8656700 (LWP 20497) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    6    Thread 0x7fe1e7e55700 (LWP 20498) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    7    Thread 0x7fe1e7654700 (LWP 20499) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    8    Thread 0x7fe1e6e53700 (LWP 20500) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    9    Thread 0x7fe1e6652700 (LWP 20501) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    10   Thread 0x7fe1e5e51700 (LWP 20502) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    11   Thread 0x7fe1e5650700 (LWP 20503) "worker"      syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    12   Thread 0x7fe1dc88f700 (LWP 20529) "swap writer" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
    13   Thread 0x7fe1c3fff700 (LWP 20633) "pool"        syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38

  Thread 13 (Thread 0x7fe1c3fff700 (LWP 20633)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db75a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007fe205267061 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #3  0x00007fe205267621 in g_async_queue_timeout_pop () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2052bdb71 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #5  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #6  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140607632701184, -4311207730762189470, 140735172322686, 140735172322687, 140735172322816, 140607632697600, 4316705288607528290, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #7  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 12 (Thread 0x7fe1dc88f700 (LWP 20529)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007fe205d4a375 in  () at /usr/lib/x86_64-linux-gnu/libgegl-0.4.so.0
  #3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608044332800, -4311207730762189470, 140735172325454, 140735172325455, 140735172325584, 140608044329216, 4316764533386409314, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 11 (Thread 0x7fe1e5650700 (LWP 20503)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x000055eb509ef673 in  ()
  #3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608192972544, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608192968960, 4316781198396388706, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 10 (Thread 0x7fe1e5e51700 (LWP 20502)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x000055eb509ef673 in  ()
  #3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608201365248, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608201361664, 4316780108011566434, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 9 (Thread 0x7fe1e6652700 (LWP 20501)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x000055eb509ef673 in  ()
  #3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608209757952, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608209754368, 4316787805129831778, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 8 (Thread 0x7fe1e6e53700 (LWP 20500)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x000055eb509ef673 in  ()
  #3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608218150656, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608218147072, 4316786706155074914, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 7 (Thread 0x7fe1e7654700 (LWP 20499)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x000055eb509ef673 in  ()
  #3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608226543360, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608226539776, 4316785607180318050, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 6 (Thread 0x7fe1e7e55700 (LWP 20498)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x000055eb509ef673 in  ()
  #3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608234936064, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608234932480, 4316784508205561186, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 5 (Thread 0x7fe1e8656700 (LWP 20497)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x000055eb509ef673 in  ()
  #3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608243328768, -4311207730762189470, 140735172331582, 140735172331583, 140735172331712, 140608243325184, 4316792205323826530, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 4 (Thread 0x7fe1e8e57700 (LWP 20496)):
  #0  0x00007fe204fc3219 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
  #1  0x00007fe2052db63f in g_cond_wait () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x000055eb509ef48a in  ()
  #3  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608251721472, -4311207730762189470, 140735172331598, 140735172331599, 140735172331728, 140608251717888, 4316791106349069666, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #5  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 3 (Thread 0x7fe1fe510700 (LWP 20494)):
  #0  0x00007fe204fbd6d9 in __GI___poll (fds=0x55eb51b33870, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
          resultvar = 18446744073709551100
          sc_cancel_oldtype = 0
  #1  0x00007fe205294e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007fe2052951d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #3  0x00007fe205c107b6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
  #4  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #5  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608611092224, -4311207730762189470, 140735172331694, 140735172331695, 140735172331824, 140608611088640, 4316840743822980450, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #6  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 2 (Thread 0x7fe200876700 (LWP 20493)):
  #0  0x00007fe204fbd6d9 in __GI___poll (fds=0x55eb51b1c6c0, nfds=2, timeout=3382) at ../sysdeps/unix/sysv/linux/poll.c:29
          resultvar = 18446744073709551100
          sc_cancel_oldtype = 0
  #1  0x00007fe205294e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #2  0x00007fe205294f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #3  0x00007fe205294fb1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #4  0x00007fe2052bd135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #5  0x00007fe2050a1164 in start_thread (arg=<optimized out>) at pthread_create.c:486
          ret = <optimized out>
          pd = <optimized out>
          now = <optimized out>
          unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140608648210176, -4311207730762189470, 140735172331294, 140735172331295, 140735172331424, 140608648206592, 4318813949509268834, 4318821738661049698}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
          not_first_call = <optimized out>
  #6  0x00007fe204fc9def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

  Thread 1 (Thread 0x7fe202137e00 (LWP 20491)):
  #0  0x00007fe2050aac24 in __libc_read (fd=20, buf=0x7fff75f42b50, nbytes=256) at ../sysdeps/unix/sysv/linux/read.c:26
          resultvar = 18446744073709551104
          sc_cancel_oldtype = 0
          sc_ret = <optimized out>
          nbytes = 256
          fd = 20
          buf = 0x7fff75f42b50
  #1  0x00007fe20631f7d4 in gimp_stack_trace_print () at /usr/lib/libgimpbase-2.0.so.0
  #2  0x000055eb5072d2a0 in  ()
  #3  0x000055eb5072d6d8 in  ()
  #4  0x000055eb5072de37 in  ()
  #5  0x00007fe2050abdd0 in <signal handler called> () at /lib/x86_64-linux-gnu/libpthread.so.0
  #6  0x00007fe206510135 in gtk_file_chooser_set_filter () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #7  0x000055eb508b6fda in  ()
  #8  0x00007fe205374b6d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #9  0x00007fe2053878f3 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #10 0x00007fe205390882 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #11 0x00007fe205390ecf in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #12 0x00007fe205374b6d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #13 0x00007fe2053878f3 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #14 0x00007fe205390882 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #15 0x00007fe205390ecf in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #16 0x00007fe20666f5c7 in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #17 0x00007fe20666f7ed in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #18 0x00007fe20666faef in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #19 0x00007fe20656fcfb in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #20 0x00007fe205374a81 in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #21 0x00007fe205387124 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #22 0x00007fe20538ff43 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #23 0x00007fe205390ecf in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #24 0x00007fe20668700c in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #25 0x00007fe20669a8c8 in gtk_window_propagate_key_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #26 0x00007fe20669d49b in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #27 0x00007fe20656fcfb in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #28 0x00007fe205374b6d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #29 0x00007fe205387124 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #30 0x00007fe20538ff43 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #31 0x00007fe205390ecf in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  #32 0x00007fe20668700c in  () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #33 0x00007fe20656e06d in gtk_propagate_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #34 0x00007fe20656e38b in gtk_main_do_event () at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
  #35 0x00007fe2063e0ccc in  () at /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
  #36 0x00007fe205294c3e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #37 0x00007fe205294ed8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #38 0x00007fe2052951d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
  #39 0x000055eb5072cacf in app_run ()
  #40 0x000055eb5072c3d5 in main ()
  [Inferior 1 (process 20491) detached]

  ```

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