gnome-settings-daemon crashed with SIGABRT in g_assertion_message()

[Christophe C]

crash at the launch of the system

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: gnome-settings-daemon 3.6.4-0ubuntu8
ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4
Uname: Linux 3.8.0-15-generic x86_64
ApportVersion: 2.9.2-0ubuntu5
Architecture: amd64
Date: Sat Mar 30 10:11:41 2013
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
InstallationDate: Installed on 2012-11-18 (131 days ago)
InstallationMedia: Ubuntu GNOME Remix 12.10 "Quantal Quetzal" - Release amd64(20121023)
MarkForUpload: True
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
ProcEnviron:
 SHELL=/bin/false
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 XDG_RUNTIME_DIR=<set>
Signal: 6
SourcePackage: gnome-settings-daemon
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 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
 gtk_widget_unregister_window () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
Title: gnome-settings-daemon crashed with SIGABRT in raise()
UpgradeStatus: Upgraded to raring on 2013-03-29 (0 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 g_assertion_message (domain=domain@entry=0x7f0aa4d35857 <gtk_text_view_accessible_get_run_attributes+1879> "\017\020D$\bM\213d$\b\307D$\034\001", file=file@entry=0x7f0aa4e0bab0 <__PRETTY_FUNCTION__.39063+16> "lumn_update_button", line=line@entry=14130, func=func@entry=0x7f0aa4e0f0a0 "TONS_CLOSE", message=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gtestutils.c:1912
 g_assertion_message_expr (domain=0x7f0aa4d35857 <gtk_text_view_accessible_get_run_attributes+1879> "\017\020D$\bM\213d$\b\307D$\034\001", file=0x7f0aa4e0bab0 <__PRETTY_FUNCTION__.39063+16> "lumn_update_button", line=14130, func=0x7f0aa4e0f0a0 "TONS_CLOSE", expr=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gtestutils.c:1923
 gtk_shadow_type_get_type () at gtktypebuiltins.c:838
 ?? ()

[Launchpad Janitor (janitor)]

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