Unless it is a series recording it will be cancelled due to the conflict. The software is not smart enough to determine the next airing and whether it is the same episode or not. Additionally if you have the series set for first run only, it will not reschedule a show not marked as new otherwise the series will (according to your priority) record the next episode (repeat or not).
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.