Pig can be steered with bare hand after deselecting the carrot-on-a-stick

I was using the carrot on a stick to control a pig (me and my friends were racing pigs).

Though when we deselected the carrot on a stick the pig was being controlled by me as if i still had the item in my hand.

How to cause the bug:
1.Put a saddle on a pig and ride it.
2.Ride a pig for a little bit using the carrot on the stick
3. Deselect the item.
4. Move your hand and you'll see the pig will still go in that direction for a bit.