Iron Golems don't attack the player after attacking another Iron Golem.

As said in the summary, iron golems dont attack the player after attacking an another iron golem.

How to reproduce:

Step 1:Create a new world in creative mode.

Step 2:Spawn two iron golems using spawn eggs (presumably works with other ways of spawning).

Step 3:Change to survival mode.

Step 4:Attack one of the iron golems, the other one does not attack.