Mutter crashes when some borderless windows close

Binary package hint: mutter

Certain borderless (no titlebar) windows, such as the effects the Qt framework uses during drag-and-drop, or certain plugins in Chrome that use a popout box, cause Mutter to crash and restart when they close. The bug is reproducible about half of the time.

This could be a duplicate of bug 634701 but I am not seeing any crashes when closing regular windows (ie ones with titlebars).

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: mutter 2.31.5-0ubuntu9
ProcVersionSignature: Ubuntu 2.6.35-25.44-generic 2.6.35.10
Uname: Linux 2.6.35-25-generic i686
NonfreeKernelModules: wl
Architecture: i386
Date: Tue Feb 1 12:29:30 2011
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: mutter