Summary:
Death player while crawling changes the player's hitbox by 1 block. The hitbox becomes normal after re-entering the world.

Steps to reproduce:

1. Switch to survival game mode.
2. Start crawling (using water first and then a 1 block tunnel).
3. Kill yourself in any way.
4. Try to go through the hole 1 block high after respawning.

Observed results:
The player walks through 1 block high when dying in a crawling position.

Expected results:
The player's hitbox in the non-crawl position will be 2 blocks high.