Untamed wolves does not attack anymore after being killed but their eyes remain red

The bug

If you attack wolves, they'll try to kill you. After; you are killed and spawn around 20+ away from the wolves; their eyes will remain red, but they won't attack you.

How to reproduce

1. Spawn some wolves and run:

   /spawnpoint @s ~ ~ ~30
   

2. Let them kill you, and go back to the wolves.
   → Their eyes will be red; but they don't attack you anymore.