beagle-search segfault on exit

Hi
I got this bugreport: https://bugzilla.redhat.com/show_bug.cgi?id=455978
and was able to reproduce it.
Simply closing beagle-search results in a segfault.

Any idea what could be causing this?
It works just fine but crashes on shutdown, seems like it tryes to
free a pointer when doing "cleanup" which causes this.