Anvil gets stuck in continuous falling loop instead of dropping normally near zombie in minecart

Short description of the issue

An anvil behaves like a falling block but gets stuck in a continuous falling/reset loop instead of dropping and settling normally when a zombie in a minecart is nearby.

Steps to reproduce the issue

1. Place an anvil in a tight or confined area

2. Put a zombie inside a minecart

3. Position the minecart very close to the anvil

4. Let the setup update (movement or interaction nearby)

5. Observe the anvil behavior

Expected result

• The anvil should fall due to gravity and land normally, then remain stable.

Actual result

• The anvil fails to complete its fall and becomes stuck in a continuous falling/reset loop, appearing locked and unstable.