apply_undo_queue returns if no layout_top is found
apply_undo_queue returns if no layout_top is found

Southpaw-TACTIC/TACTIC,Southpaw-TACTIC/TACTIC,Southpaw-TACTIC/TACTIC,diegocortassa/TACTIC,diegocortassa/TACTIC,Southpaw-TACTIC/TACTIC,Southpaw-TACTIC/TACTIC,diegocortassa/TACTIC,Southpaw-TACTIC/TACTIC,diegocortassa/TACTIC,diegocortassa/TACTIC,diegocortassa/TACTIC