Creaking mobs linked to their heart cannot be directly killed by players in creative mode

The Bug

Creaking mobs linked to their heart cannot be killed by players in creative mode without breaking their creaking heart. This covers naturally spawned creaking mobs.

Steps to Reproduce:

1. Go into creative mode
2. Find a pale forest
3. Set the time to night
4. Find the creaking
5. Try to attack it.

Expected Results:

Naturally spawned creaking mobs could be killed directly in creative mode.

Observed Results:

Naturally spawned creaking mobs cannot be killed directly in creative mode, you must also break their creaking heart.