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[Launchpad Bug Tracker <1714650@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package mlt - 6.4.1-5ubuntu1

---------------
mlt (6.4.1-5ubuntu1) artful; urgency=medium

  * Add upstream patch 04-allow-repository_deletion_without_side_effect.diff
    to fix kdenlive crash on exit (LP: #1714650)

 -- Rik Mills <rikmills@xxxxxxxxxxx>  Sat, 02 Sep 2017 10:27:00 +0100

** Changed in: mlt (Ubuntu Artful)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1714650

Title:
  MLT causes kdenlive in artful to crash on exit - possible fix upstream

Status in Kdenlive:
  New
Status in kdenlive package in Ubuntu:
  New
Status in mlt package in Ubuntu:
  Fix Released
Status in kdenlive source package in Artful:
  New
Status in mlt source package in Artful:
  Fix Released

Bug description:
  On exit with the version of MLT in artful, current kdelive crashs on
  exit with BT below:

  Also see KDE bug: https://bugs.kde.org/show_bug.cgi?id=373791

  It seems that this may be fixed upstream for MLT with:

  https://github.com/mltframework/mlt/commit/a3188e301b5a9a1f25dbb98a510e366363348e64

  
  **** crash BT ****

  Thread 1 (Thread 0x7f02a4fd28c0 (LWP 25828)):
  [KCrash Handler]
  #6  0x00007f025835d8b0 in  ()
  #7  0x00007f02a406839a in mlt_consumer_purge () at /usr/lib/x86_64-linux-gnu/libmlt.so.6
  #8  0x0000562b1c6c8845 in  ()
  #9  0x0000562b1c5a7de5 in  ()
  #10 0x0000562b1c5a7e79 in  ()
  #11 0x0000562b1c6ab13b in  ()
  #12 0x0000562b1c6ab249 in  ()
  #13 0x00007f029df843f0 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
  #14 0x00007f029f09b4c3 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
  #15 0x00007f029f188b9b in QMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
  #16 0x00007f02a25d88e7 in KMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
  #17 0x00007f02a261de15 in KXmlGuiWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
  #18 0x00007f029f05a46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
  #19 0x00007f029f061d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
  #20 0x00007f029df54d68 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
  #21 0x00007f029df574dd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
  #22 0x00007f029df5bd3d in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
  #23 0x0000562b1c2f7509 in  ()
  #24 0x00007f029d297421 in __libc_start_main (main=0x562b1c2f64e0, argc=1, argv=0x7ffedcda78d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffedcda78c8) at ../csu/libc-start.c:291
  #25 0x0000562b1c2f7cea in _start ()

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