shotwell crashed with SIGABRT in view_collection_real_notify_items_removed()

[UbuFiNeon]

I was very fast with closing after saving ... maybe that was the problem! File was saved correctly ....

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: shotwell 0.11.93-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-19.30-generic 3.2.11
Uname: Linux 3.2.0-19-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
Date: Wed Mar 21 13:22:54 2012
ExecutablePath: /usr/bin/shotwell
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcCmdline: shotwell /home/username/Bilder/Auswahl_sound-indicator_device.png
Signal: 6
SourcePackage: shotwell
StacktraceTop:
 g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? ()
 ?? ()
 ?? ()
Title: shotwell crashed with SIGABRT in g_assertion_message()
UpgradeStatus: Upgraded to precise on 2012-03-21 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers

[Apport retracing service (apport)]

StacktraceTop:
 g_assertion_message (domain=<optimized out>, file=<optimized out>, line=<optimized out>, func=0x6f0040 "view_collection_real_notify_items_removed", message=0x28f2650 "assertion failed: (_tmp14_)") at /build/buildd/glib2.0-2.31.22/./glib/gtestutils.c:1860
 g_assertion_message_expr (domain=0x0, file=0x6ee928 "/build/buildd/shotwell-0.11.93/src/core/ViewCollection.vala", line=573, func=0x6f0040 "view_collection_real_notify_items_removed", expr=<optimized out>) at /build/buildd/glib2.0-2.31.22/./glib/gtestutils.c:1871
 view_collection_real_notify_items_removed (base=<optimized out>, removed=0x7f029c002b30) at /build/buildd/shotwell-0.11.93/src/core/ViewCollection.vala:573
 data_collection_real_clear (self=0x312f490) at /build/buildd/shotwell-0.11.93/src/core/DataCollection.vala:478
 data_collection_real_clear (self=0x312f490) at DataCollection.c:1981