gtk-window-decorator crashed with SIGSEGV in g_datalist_id_set_data_full()

[Shajahan]

Version : 12.10
Bug Details: VLC behaves weird on opening launching from side bar.

Steps to reproduce:
1. Open VLC from the side bar.
2. Right click in VLC screen to play.
3. There you go VLC crashes.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: compiz-gnome 1:0.9.8+bzr3249-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1
Uname: Linux 3.5.0-10-generic i686
NonfreeKernelModules: wl
ApportVersion: 2.4-0ubuntu8
Architecture: i386
Date: Sat Aug 18 23:41:29 2012
ExecutablePath: /usr/bin/gtk-window-decorator
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
ProcCmdline: /usr/bin/gtk-window-decorator
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb6e03277 <g_datalist_id_set_data_full+167>: mov (%ecx),%edi
 PC (0xb6e03277) ok
 source "(%ecx)" (0xaaaaaaa8) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 g_datalist_id_set_data_full () from /lib/i386-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
 g_object_unref () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
Title: gtk-window-decorator crashed with SIGSEGV in g_datalist_id_set_data_full()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm lpadmin sambashare sudo

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1021612, 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.