Fire golems are targetted by zombie variants

[ghost]

MC Version: 1.16.4
Fabric Version: 0.10.8
Mod Version: 1.1.1
Library of Exile Version: 1.0.6

I came across a battle tower which had a fire golem on the top, and a husk from the level below was attempting to attack the golem without provocation. The husk couldn't actually damage the golem, and therefore couldn't provoke a response from it, so just pushed it around flailing its arms at it. Presumably, zombies shouldn't be able to target fire golems if both of them are hostile mobs and neither has damaged the other.