Allow back to back shifts with different clients

Allow to create back to back shifts with different clients without having to disable the "do not allow overlapping schedules".  We have some families that have two clients in the same home. We need to be able to create shifts one right after the other, but "conflict of schedule" does not allow the shifts to be created. Having the warning pop up with the option to ignore would be good, however we don't want that option for actual overlapping.