Shulkers spawned by spawn eggs visually face the player until the world is reloaded

Steps to Reproduce:

1. Get a Shulker Spawn Egg

2. Spawn a Shulker facing any direction that is not strictly one of the four cardinal directions

Observed Results:
The Shulker is visually rotated to face the position you were in when it was spawned (or away from you, if placed on a wall). Reloading the world fixes their rotations.

Expected Results:
The Shulker is always spawned facing no particular direction, aligned to the axis of its support block.

Screenshots/Videos attached: Yes

Notes: Shulkers on walls will still push entities away from their support blocks when opened, regardless of how they look.