Rabbits when not tamed do not run from me

Like I said, the mob AI system has gone downhill lately, so it seems that it has affected the rabbits. The rabbits do not try to run away even when they are not tamed. Instead, they keep jumping and pouncing up at me, a lot like the Killer Rabbit Of Caerbannog's AI system. Despite using another mob's AI, the mob is still passive and will not attack