Hostile endermen teleport to you after exposed to sunlight for a while

When you fight an enderman in sunlight, it becomes passive after a couple minutes and starts teleporting toward you acting sort of as if it were tamed in sunlight.
to reproduce: go to survival and provoke an enderman, make sure you dont die while it attacks you and it will become a "passive pet". when you reload the game, the broken AI stops and the enderman acts normal.