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https://bugs.launchpad.net/bugs/1848119

Title:
  gnome-shell infinite error loop when closing app in activities
  overview: Object St.Button (0x55aeadeca4a0), has been already
  deallocated ... [workspace.js:695]

Status in GNOME Shell:
  Fix Released
Status in gnome-shell package in Ubuntu:
  Won't Fix
Status in mutter package in Ubuntu:
  Fix Released
Status in gnome-shell source package in Eoan:
  Won't Fix
Status in mutter source package in Eoan:
  Fix Released
Status in gnome-shell source package in Focal:
  Won't Fix
Status in mutter source package in Focal:
  Fix Released
Status in gnome-shell package in Fedora:
  Confirmed

Bug description:
  [ Impact ]

  Gnome shell fills the journal with errors as soon as a view is closed
  from the overview

  Ubuntu 19.10 on Xorg
  gnome-shell 3.34.1-1ubuntu1

  [ Test case ]

  1) Open terminal and watch journalct -f /usr/bin/gnome-shell
  2) Open a window (i.e Files)
  3) Close Files in the activities overview
  4) gnome-shell spanws errors in the journal.

  Oct 14 23:25:38 titan gnome-shell[9919]: Object St.Button (0x55aeadeca4a0), 
has been already deallocated — impossible to get any property from it. This 
might be caused by the object having been destroyed from C code using something 
such as destroy(), dispose(), or remove() vfuncs.
  Oct 14 23:25:38 titan gnome-shell[9919]: == Stack trace for context 
0x55aead0b5360 ==
  Oct 14 23:25:38 titan gnome-shell[9919]: #0   55aeae6f3910 i   
resource:///org/gnome/shell/ui/workspace.js:695 (7f438c072c10 @ 15)
  Oct 14 23:25:38 titan gnome-shell[9919]: #1   7ffd96c5e360 b   
self-hosted:975 (7f438c12dee0 @ 392)

  [ Regression potential ]

  Key focus might not work properly in some shell elements, in
  particular the focus be owned by multiple actors or by none of them.

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