unity-2d-spread crashed with SIGABRT in raise()

[The Fiddler]

Happened when I was moving a window from a monitor to another.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-spread 4.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Thu Sep 8 10:53:18 2011
ExecutablePath: /usr/bin/unity-2d-spread
ProcCmdline: /usr/bin/unity-2d-spread
Signal: 6
SourcePackage: unity-2d
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /usr/lib/libunity-2d-private.so.0
 qt_message_output(QtMsgType, char const*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
Title: unity-2d-spread crashed with SIGABRT in raise()
UpgradeStatus: Upgraded to oneiric on 2011-08-26 (13 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #840355, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.