Comment 2 for bug 1401609

StacktraceTop:
 emission_find (instance=<optimized out>, detail=<optimized out>, signal_id=<optimized out>) at /build/buildd/glib2.0-2.43.1/./gobject/gsignal.c:761
 signal_emit_unlocked_R (node=0x3, node@entry=0xa784de0, detail=198312840, detail@entry=0, instance=0xbd20388, emission_return=0x0, instance_and_params=0xbfe17a80) at /build/buildd/glib2.0-2.43.1/./gobject/gsignal.c:3414
 g_signal_emit_valist (instance=0xbd20388, signal_id=11, detail=0, var_args=0xbfe17bcc "I\r2\266\067~\"\266") at /build/buildd/glib2.0-2.43.1/./gobject/gsignal.c:3286
 g_signal_emit (instance=0xbd20388, signal_id=11, detail=0) at /build/buildd/glib2.0-2.43.1/./gobject/gsignal.c:3342
 gtk_object_dispose (gobject=0xbd20388) at /build/buildd/gtk+2.0-2.24.25/gtk/gtkobject.c:421