Mobs IMMEDIATELY lose interest in seeds the second line of sight is broken.

Only tested with chickens, but it is extremely annoying to jump up one block and all of them lose interest (they're still only a couple blocks away when this happens), then I have to wait another twenty or so seconds for them to regain interest. This was never an issue to this extent, although imo changes are needed to make animals following you more forgiving (maybe make them faster when following?)