gnome-flashback-clipboard crashed with signal 5 in _XReply()

[Dmitry Shachnev]

I was not doing anything specific that could obviously cause this error.

ProblemType: Crash
DistroRelease: Ubuntu 20.04
Package: gnome-flashback 3.36.4-0ubuntu1.1
ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65
Uname: Linux 5.4.0-54-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.13
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: GNOME-Flashback:GNOME
Date: Tue Dec 1 19:01:59 2020
ExecutablePath: /usr/lib/gnome-flashback/gnome-flashback-clipboard
ExecutableTimestamp: 1600930869
ProcCmdline: /usr/lib/gnome-flashback/gnome-flashback-clipboard
ProcCwd: /home/alexey
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
Signal: 5
SourcePackage: gnome-flashback
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 XSync () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 ?? ()
Title: gnome-flashback-clipboard crashed with signal 5 in _XReply()
UpgradeStatus: Upgraded to focal on 2020-11-28 (3 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
separator:

[Apport retracing service (apport)]

StacktraceTop:
 XSync (dpy=0x5652661db190, discard=0) at ../../src/Sync.c:44
 finish_selection_request ()
 clipboard_manager_event_filter ()
 gdk_event_apply_filters () from /tmp/apport_sandbox_c1z400_t/usr/lib/x86_64-linux-gnu/libgdk-3.so.0
 _gdk_x11_display_queue_events () from /tmp/apport_sandbox_c1z400_t/usr/lib/x86_64-linux-gnu/libgdk-3.so.0