Comment 2 for bug 798444

StacktraceTop:
 raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
 abort () at abort.c:92
 g_assertion_message (domain=<value optimized out>, file=<value optimized out>, line=<value optimized out>, func=0x7fa128ddc5e0 "rhythmdb_property_model_prop_changed_cb", message=0x3efa870 "assertion failed: (g_hash_table_remove (propmodel->priv->entries, entry))") at /build/buildd/glib2.0-2.28.6/./glib/gtestutils.c:1358
 g_assertion_message_expr (domain=0x7fa128de94f7 "RhythmDB", file=0x7fa128ddbcb0 "rhythmdb-property-model.c", line=611, func=0x7fa128ddc5e0 "rhythmdb_property_model_prop_changed_cb", expr=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./glib/gtestutils.c:1369
 rhythmdb_property_model_prop_changed_cb (db=<value optimized out>, entry=0x7fa11027a800, propid=<value optimized out>, old=0x3e2bc88, new=0x3e2bca0, propmodel=0x3886920) at rhythmdb-property-model.c:611