Chicken jockeys do not attack

Well I did a research in typing "chicken" but I just find MCPE-8925 so I will create this ticket

I spawned 3 chicken jockeys then I spawned a villager, and the jockeys are agressive to the villager but they don't attack it. The same when using zombie pigman jockeys.
If I am in survival mode, they will chase me but will not deal any damage.