Leash is attached to the player's elbow in third-person view

When the new player animations got introduced in 1.13, the leash got attached to the wrong part of the body.

Steps to Reproduce:

1. Use a leash on any mob;
2. Switch to Third Person View.

Observed Results:
The leash is attached to the player's elbow.

Expected Results:
The leash is perfectly attached to the player's hand.

Screenshots/Videos attached: Yes

Notes: This should probably be an easy fix.