docs: @Override
  	public CommerceOrder fetchByG_U_O_First(long groupId, long userId,
  		int orderStatus, OrderByComparator<CommerceOrder> orderByComparator) {
  		List<CommerceOrder> list = findByG_U_O(groupId, userId, orderStatus, 0,
  				1, orderByComparator);
  
  		if (!list.isEmpty()) {
  			return list.get(0);
  		}
  
  		return null;
  	}