Shifting while gliding changes hitbox

If you sneak while gliding with elytra the hitbox changes and the character render offset too.
https://i.gyazo.com/8c3fd06a59544e92f135dcfb2ebb3529.png
https://i.gyazo.com/077124142835e18eb081944747380011.png

Gif:
https://gyazo.com/5d46280e9cd1269614d8b11add7c1695