The facing directions of armadillos doesn't match

The Bug:

The facing directions of armadillos doesn't match.

Steps to Reproduce:

1. Summon an armadillo.
2. Enable entity hitboxes and stand beside it.
3. Wait until it looks in your direction.

Observed Behavior:

The facing directions of armadillos doesn't match.

Expected Behavior:

The facing directions of armadillos would match.