Third-person camera's view center is above player while swimming

Third-person camera's view center is above player's body while swimming, that causes when a player swims in a one-block hole, the third-preson camera's view center is inside a block above the player and the player can only see inside a block which is above his body, that is weird. Third-person camera's view center should be in the player's body while swimming to match the one-block hitbox of player.

There are a lot of issues about player's hitbox and camera's position but most of them are not being fixed. Mojang really needs to fix them to improve our in-game experience.

Steps to reproduce:

1.swim into a one-block hole. 

2.switch to the third-person view.

Expected results:

you can see outside the hole in the third-person view.

Observed results:

you can only see inside a block which is above your body.