Comment 16 for bug 1665048

StacktraceTop:
 convert_xfce_output_info (output_id=<optimized out>) at main.c:1618
 get_output_for_window (window=<optimized out>) at main.c:2671
 select_current_output_from_dialog_position (app=0x557e3781ee90) at main.c:2708
 dialog_map_event_cb (widget=widget@entry=0x7f366000c580, event=<optimized out>, data=0x557e3781ee90) at main.c:2722
 _gtk_marshal_BOOLEAN__BOXED (closure=0x557e3781f130, return_value=0x7ffe4fdc5840, n_param_values=<optimized out>, param_values=0x7ffe4fdc58a0, invocation_hint=<optimized out>, marshal_data=<optimized out>) at gtkmarshalers.c:86