Mob hitbox still exists during death animation

The game still targets the selected mob (entity) during the short death animation so does not allow other entities or blocks behind to be hit.

Steps to reproduce.
1. Equip weapon of choice.
2. Kill mob
3. During death animation, try to hit/access things directly behind where the mob was standing - not possible

I would personally prefer to see the hotbox completely disappear just as the death anim starts