Comment 7 for bug 1394439

Specifically this piece of code from the above commit causes the problem:

 c2 = myScreenGetClientFromWindow (screen_info, GDK_WINDOW_XID (gtk_widget_get_window ( passdata.tabwin->tabwin_list->data)), SEARCH_FRAME);
 g_message ("%p", c2);
 clientSetFocus (screen_info, c2, ev->time, NO_FOCUS_FLAG);