If you drop any mob which is in a boat into water they will stay in the boat until they start to drown. Once they start to drown however, they will fly up to the top where the boat originally was and then float there.
If you drop any mob which is in a boat into water they will stay in the boat until they start to drown. Once they start to drown however, they will fly up to the top where the boat originally was and then float there.
Cannot confirm for 15w45a but please recheck, tested it with villagers