unity-applications-daemon crashed with SIGSEGV in dee_sequence_model_free_row()

[zzecool]

Crash while trying to start xchat ( i think the application is irrelevant )

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-lens-applications 5.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.26-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Mon Feb 20 14:43:00 2012
ExecutablePath: /usr/lib/unity-lens-applications/unity-applications-daemon
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcCmdline: /usr/lib/unity-lens-applications/unity-applications-daemon
SegvAnalysis:
 Segfault happened at: 0x7fa21675ac98: mov 0x0(%rbp,%r14,8),%rdi
 PC (0x7fa21675ac98) ok
 source "0x0(%rbp,%r14,8)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-lens-applications
StacktraceTop:
 ?? () from /usr/lib/libdee-1.0.so.4
 ?? () from /usr/lib/libdee-1.0.so.4
 ?? () from /usr/lib/libunity.so.9
 g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: unity-applications-daemon crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: Upgraded to precise on 2012-02-16 (3 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers

[Apport retracing service (apport)]

StacktraceTop:
 dee_sequence_model_free_row (self=<optimized out>, iter=0x915500) at dee-sequence-model.c:981
 dee_sequence_model_remove (self=0x8d6230, iter_=0x915500) at dee-sequence-model.c:482
 unity_results_synchronizer_on_row_removed (iter=0x7fa20c004b00, provider=0x701020, self=0x8e2680) at unity-lens-tools.c:1228
 _unity_results_synchronizer_on_row_removed_dee_model_row_removed (_sender=<optimized out>, iter=0x7fa20c004b00, self=0x8e2680) at unity-lens-tools.c:963
 g_closure_invoke (closure=0x8efc10, return_value=0x0, n_param_values=2, param_values=0x7fa20c015d90, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.31.16/./gobject/gclosure.c:774

[Launchpad Janitor (janitor)]

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