Elder Guardians ignore their behaviors and will put mining fatigue on players even when not supposed to

Partner Rank: 3

Verification builds: Beta 1.12.0.4 release 2160393

Summary: Elder Guardians ignore their behaviors and will put mining fatigue on players even when not supposed to

Impact: Behavior modifications that don't work as they should cause problems with development including halting of projects altogether.

Repro Steps:
1. download the attached "monster bug world"
2. summon a dozen elder guardians
3. change your gamemode to survival
3. wait

Observed Results: The elder guardian will attack you with mining fatigue and mobs even when not defined by their attack.nearest.target behavior.

Expected Results: They should only attack mobs/players defined by their behavior pack

Screenshots/Videos attached:  World is attached.

Regression builds: never worked, at least since 1.2