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

unity-applications-daemon crashed after i typed sys into the unity-launcher and hited Enter.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-lens-applications 5.2.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-14.23-generic-pae 3.2.3
Uname: Linux 3.2.0-14-generic-pae i686
ApportVersion: 1.91-0ubuntu1
Architecture: i386
Date: Tue Feb 7 22:53:41 2012
ExecutablePath: /usr/lib/unity-lens-applications/unity-applications-daemon
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcCmdline: /usr/lib/unity-lens-applications/unity-applications-daemon
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
SegvAnalysis:
 Segfault happened at: 0xb744a48c <node_get_pos+12>: mov (%edx),%eax
 PC (0xb744a48c) ok
 source "(%edx)" (0x00000001) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-lens-applications
StacktraceTop:
 node_get_pos (node=0x864ffb0) at /build/buildd/glib2.0-2.31.17+git20120205.b98b6318/./glib/gsequence.c:1639
 ?? () from /usr/lib/libdee-1.0.so.4
 dee_model_get_position () from /usr/lib/libdee-1.0.so.4
 ?? () from /usr/lib/libdee-1.0.so.4
 dee_model_get_position () from /usr/lib/libdee-1.0.so.4
Title: unity-applications-daemon crashed with SIGSEGV in node_get_pos()
UpgradeStatus: Upgraded to precise on 2012-01-12 (26 days ago)
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