gnome-shell crashed with SIGABRT [mutter:ERROR:x11/group.c:71:meta_group_new: assertion failed: (g_hash_table_lookup (display->groups_by_leader, &group_leader) == NULL)] in meta_group_new() from meta_window_compute_group() from meta_window_group_leader_changed()

[Xosé]

https://errors.ubuntu.com/problem/9bea357ea5cfb84d4e9152cf92cc9a21e6da5531

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Apparently random. Déjà-Dup was working in the background, as well as apt; I was working with Firefox and LibreOffice and signing a document in the latter.

ProblemType: Crash
DistroRelease: Ubuntu 17.04
Package: gnome-shell 3.23.92-0ubuntu1
ProcVersionSignature: Ubuntu 4.10.0-13.15-generic 4.10.1
Uname: Linux 4.10.0-13-generic x86_64
ApportVersion: 2.20.4-0ubuntu2
Architecture: amd64
CrashCounter: 1
CurrentDesktop: GNOME
Date: Sun Mar 19 22:03:39 2017
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2016-09-03 (197 days ago)
InstallationMedia: Ubuntu-GNOME 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160720)
ProcCmdline: /usr/bin/gnome-shell
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=gl_ES.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: gnome-shell
StacktraceTop:
 g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
 meta_window_compute_group () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
 meta_window_set_transient_for () from /usr/lib/x86_64-linux-gnu/libmutter-0.so.0
Title: gnome-shell crashed with SIGABRT in g_assertion_message()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 g_assertion_message () from /tmp/apport_sandbox_88AF7K/lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /tmp/apport_sandbox_88AF7K/lib/x86_64-linux-gnu/libglib-2.0.so.0
 meta_group_new (display=0x55b59f5568d0, group_leader=<optimized out>) at x11/group.c:71
 meta_window_compute_group (window=window@entry=0x55b5a34c8420) at x11/group.c:179
 meta_window_group_leader_changed (window=window@entry=0x55b5a34c8420) at x11/group.c:216

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.