Error in horse tied to lead: the lead goes through the horse

Put the summary of the bug you're having here

"What I expected to happen was that the lead would be tied on the horses neck"

"What actually happened was that the lead went through the horse's neck while it stood up on 2 legs"

Steps to Reproduce
1. Find a horse and tie it to a post using a lead
2. Grab some wheat and right click the horse
3. The lead will go through the horse's neck