/rotate command no longer properly rotates mobs

Steps to reproduce:

1. Place an always active repeating command block with the below command:

rotate @n[type=pig] facing entity @p

1. Spawn a few pigs with spawn eggs.

2. Note that the pigs are not rotated to face you, and instead stutter, spin, and break.

3. Now, carry out the same test in 26.3

• • Note that the pig instead properly rotates its head and body to face you every tick.

Pigs are used as this is the most noticeable way to demonstrate the unintended behavior, see the showcase videos attached.