Comment 2 for bug 1056377

StacktraceTop:
 g_action_muxer_insert (muxer=0x1df0270, prefix=0x7ffdac03e23d "app", action_group=0x1dea000) at /build/buildd/gtk+3.0-3.5.18/./gtk/gactionmuxer.c:645
 gtk_window_set_application (window=window@entry=0x1df90f0, application=application@entry=0x1dea000) at /build/buildd/gtk+3.0-3.5.18/./gtk/gtkwindow.c:2849
 gtk_application_window_added (application=0x1dea000, window=0x1df90f0) at /build/buildd/gtk+3.0-3.5.18/./gtk/gtkapplication.c:513
 g_cclosure_marshal_VOID__OBJECT (closure=0x7ffda9a71740, return_value=0xffffffff, n_param_values=0, param_values=0x0, invocation_hint=0x1d1d330, marshal_data=0x0) at /build/buildd/glib2.0-2.33.14/./gobject/gmarshal.c:1258
 ?? ()