software-center crashed with SIGSEGV in _gtk_icon_helper_get_storage_type()

[noxified]

To reproduce:
- open a debfile with software-center
- while its loading, close it
-> crash (but happens only every 5 attempts or so)

i was installing skype ,and i got this error .
i usualy use gdebi.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: software-center 5.1.11
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
Uname: Linux 3.2.0-17-generic-pae i686
ApportVersion: 1.94-0ubuntu1
Architecture: i386
Date: Sun Mar 4 18:43:09 2012
ExecutablePath: /usr/share/software-center/software-center
InstallationMedia: Xubuntu 12.04 "Precise Pangolin" - Beta i386 (20120228)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center /home/username/Downloads/skype-ubuntu_2.2.0.35-1_i386.deb
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb67a5db4: mov 0xc(%eax),%eax
 PC (0xb67a5db4) ok
 source "0xc(%eax)" (0x0000000c) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SoftwareCenterLog:
 2012-03-04 18:42:58,387 - softwarecenter.fixme - WARNING - logs to the root logger: '('/usr/lib/python2.7/dist-packages/gi/importer.py', 51, 'find_module')'
 2012-03-04 18:42:58,387 - root - ERROR - Could not find any typelib for Gst
 2012-03-04 18:42:59,086 - softwarecenter.region - WARNING - failed to use geoclue: 'org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Geoclue.Master was not provided by any .service files'
 2012-03-04 18:43:00,206 - softwarecenter.backend.reviews - WARNING - Could not get usefulness from server, no username in config file
SourcePackage: software-center
StacktraceTop:
 ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0
 gtk_image_get_storage_type () from /usr/lib/i386-linux-gnu/libgtk-3.so.0
 gtk_image_clear () from /usr/lib/i386-linux-gnu/libgtk-3.so.0
 gtk_image_set_from_pixbuf () from /usr/lib/i386-linux-gnu/libgtk-3.so.0
 ffi_call_SYSV () from /usr/lib/i386-linux-gnu/libffi.so.6
Title: software-center crashed with SIGSEGV in gtk_image_get_storage_type()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 _gtk_icon_helper_get_storage_type (self=0x0) at /build/buildd/gtk+3.0-3.3.16/./gtk/gtkiconhelper.c:482
 gtk_image_get_storage_type (image=0xa4d33f0) at /build/buildd/gtk+3.0-3.3.16/./gtk/gtkimage.c:1068
 gtk_image_reset (image=0xa4d33f0) at /build/buildd/gtk+3.0-3.3.16/./gtk/gtkimage.c:1430
 gtk_image_clear (image=0xa4d33f0) at /build/buildd/gtk+3.0-3.3.16/./gtk/gtkimage.c:1486
 gtk_image_set_from_pixbuf (image=0xa4d33f0, pixbuf=0xaba6e78) at /build/buildd/gtk+3.0-3.3.16/./gtk/gtkimage.c:851

[Launchpad Janitor (janitor)]

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

[Jane Atkinson (irihapeti)]

I opened a deb package (artha), saw that it's now in the repos, and closed software-center. (I prefer to use synaptic, which I opened more or less straight away.) The crash message happened about 30 seconds later or more. Apart from getting the notification, nothing obviously wrong appeared to have happened.