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[Bug 1289820] Re: 'Move to Another Workspace' causes window to disappear


** Description changed:

+ [Impact]
+ If users set the wrong setting in Compiz Config Settings Manager (CCSM),
+ it is possible for a users window to disappear when using "Move to
+ Workspace X" when right clicking on a windows decoration.
+ This can make seem like the user has lost their window and force the
+ user to potentially loose any unsaved works if they can't figure out how
+ to recover the window.
+ [Test Case]
+ To reproduce:
+ * Open CCSM by either typing "ccsm" in the command line or finding it in the Dash.
+ * Go to General Options->Desktop Size.
+ * Enter some number > 1 for "Number of Desktops".
+ * Right click on the decoration of a window and select "Move to Workspace Right".
+ * Watch the window disappear with no trace.
+ After applying this fix:
+ * The "Number of Desktops" option should be gone.
+ [Regression Potential]
+ For Ubuntu running Unity, none identified.
+ Very small chance that some other desktop environment may use this setting, but none of the major desktop environments use it.
+ Original description:
  When using the 'Move to Another Workspace' right-click option on a
  window, the window disappears from the current workspace, but is not
  present in any other workspace.  It effectively is no longer accessible,
  though it can still be killed.  Disabling workspaces does not cause the
  lost window to reappear, but setting the number of desktops to 1 in CCSM
  > General Options > Desktop Size > Number of Desktops does the trick and
  the window reappears.
  I am using Ubuntu 14.04 (latest updates as of 2014-03-07) and NVIDIA
  proprietary drivers.  I do not experience this problem on Ubuntu 13.04.
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unity 7.1.2+14.04.20140305-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
  Uname: Linux 3.13.0-16-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CurrentDesktop: Unity
  Date: Sat Mar  8 11:47:54 2014
  InstallationDate: Installed on 2013-12-31 (66 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131228)
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)

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  'Move to Another Workspace' causes window to disappear

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