unity-2d-shell crashed with SIGSEGV in data()

[Jordan]

I was trying to use a keyboard combination in gnome-terminal (alt+9 for switching to window 9 in irssi) when (presumably because I messed up) the HUD came up. I tried to get it to go away by pressing escape / clicking outside the HUD etc but it appeared to be frozen. After it went away I was presented with the apport dialog saying that Unity 2D had crashed, and here I am :)

This has actually happened to me many times, but this is the first time I've had all my packages up to date so that Apport would actually let me send the bug report.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-2d-shell 5.8.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-9.16-generic 3.2.1
Uname: Linux 3.2.0-9-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.95-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Sun Mar 25 17:32:33 2012
ExecutablePath: /usr/bin/unity-2d-shell
ProcCmdline: unity-2d-shell
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity-2d
Title: unity-2d-shell crashed with SIGSEGV in QDBusAbstractInterface::asyncCallWithArgumentList()
UpgradeStatus: Upgraded to precise on 2012-01-15 (70 days ago)
UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 data (this=0xffffff08) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:135
 qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at ../../include/QtCore/../../src/corelib/global/qglobal.h:2430
 d_func (this=0xffffff00) at qdbusabstractinterface.h:159
 QDBusAbstractInterface::asyncCallWithArgumentList (this=0xffffff00, method=..., args=...) at qdbusabstractinterface.cpp:493
 Icon (this=0xffffff00) at /build/buildd/libqtbamf-0.2.3/bamf-view-proxy.h:64

[Launchpad Janitor (janitor)]

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