gconf-editor crashed with SIGABRT in g_assertion_message()

[McGiver]

Crashed upon entering Global_Keybinding for Metacity, could not reproduce Crash so far.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gconf-editor 3.0.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.28-generic 3.2.9
Uname: Linux 3.2.0-18-generic i686
ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
Date: Sun Mar 11 16:54:33 2012
ExecutablePath: /usr/bin/gconf-editor
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcCmdline: gconf-editor
Signal: 6
SourcePackage: gconf-editor
StacktraceTop:
 raise () from /lib/i386-linux-gnu/libc.so.6
 abort () from /lib/i386-linux-gnu/libc.so.6
 g_assertion_message () from /lib/i386-linux-gnu/libglib-2.0.so.0
 gconf_value_copy () from /usr/lib/i386-linux-gnu/libgconf-2.so.4
 ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
Title: gconf-editor crashed with SIGABRT in raise()
UpgradeStatus: Upgraded to precise on 2012-02-28 (12 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 g_assertion_message (domain=0x564b03 "GConf", file=0x562761 "gconf-value.c", line=780, func=0x562eb7 "gconf_value_copy", message=<optimized out>) at /build/buildd/glib2.0-2.31.20/./glib/gtestutils.c:1860
 gconf_value_copy (src=0xa123090) at gconf-value.c:780
 _g_type_boxed_copy (type=167777664, value=0xa123090) at /build/buildd/glib2.0-2.31.20/./gobject/gtype.c:4239
 g_boxed_copy (boxed_type=167777664, src_boxed=0xa123090) at /build/buildd/glib2.0-2.31.20/./gobject/gboxed.c:337
 value_set_boxed_internal (need_free=1, need_copy=1, boxed=0xa123090, value=0xbfa58614) at /build/buildd/glib2.0-2.31.20/./gobject/gboxed.c:464