Horses mounted while eating continue to play the eating animation.

If a tamed, saddled horse plays the eating animation and a player mounts it, the horse continues to play the eating animation for quite a few seconds longer than normal, even if the horse is walking. The horse stops playing the animation after about 3 seconds or if the player dismounts.

Steps to Reproduce:
1. Tame and saddle a horse
2. Wait until the horse is eating, and then quickly mount it

Actual Results:
The horse continues eating for a long time after being mounted, even if the horse is moving.

Expected Results:
The horse stops eating when mounted.