[misc] enemy BK AI changed recently?

In recent wars, I have noticed that the enemy BK no longer stays within his bubble once he finds some hogs. I have seen in multiple attacks where he has chased hogs clear across the other side of the base, far far away from his alter... I swear this didn't used to happen. Has anyone else seen this? It's really annoying and also sucks, cause it can mess up hogging attempts.