Found while testing MC-251047 and MC-251045.

The bug

If a mob attacks the warden, and another mob then creates three vibrations which that warden detects, the warden will stay focused on the mob that attacked it. However, if a player creates those three vibrations, the warden will switch to target the player instead.

How to reproduce

1. Create a setup that allows a pillager to shoot a warden and allows another mob to create vibrations
2. Have the pillager shoot the warden, and then make another mob cause vibrations
3. Now repeat this experiment but create the vibrations yourself

Expected results

As the second mob didn't change the warden's focus, neither should the player.

Actual results

The player does.