Baby Villager Hitbox

When you hit the space above a baby villager's head, it deals damage to the baby, even if the block above is just air.

What I expected to happen was that it would not affect the baby.

*What actually happened was it dealt damage to the baby

Steps to Reproduce:
1. Spawn a baby villager.
2. Hit the space directly above it's head.
3. It deals damage.