public void tryFillInExtraneousExternal(WorldMap.CrossExit EX, Exit ox, Room linkFrom)
	{
		if(EX==null) return;
		Room linkTo=CMLib.map().getRoom(EX.destRoomID);
		if((linkTo!=null)&&(linkTo.getGridParent()!=null))
			linkTo=linkTo.getGridParent();
		if((linkTo!=null)&&(linkFrom.rawDoors()[EX.dir]!=linkTo))
		{
			if(ox==null) ox=CMClass.getExit("Open");
			linkFrom.rawDoors()[EX.dir]=linkTo;
			linkFrom.setRawExit(EX.dir,ox);
		}
	}