Drowned stay aggressive after switching to creative mode far away

The bug

Drowneds holding a trident will still target the player if they switch to creative mod far away.

How to reproduce

1. Summon a drowned with a trident
2. Switch to survival
3. Get away from the drowned and switch to creative
   → The drowned will stay throw tridents at you even though you are in creative

Video

2019-06-08 12-44-54.mp4