Parity issue: Creakings from creaking hearts despawn on world reload

The issue:

Creakings from creaking hearts despawn on world reload. Not consistent with Java 24w46a.

Steps to Reproduce:

1. Spawn a creaking with a creaking heart and 2 pale oak logs. Set the time to night first.

2. Reload the world

Observed results:

The old creaking despawns. A new creaking mob will take its place.

Expected Results: 

The old creaking will stay on world reload.