Iron Golem Attack A.I Stuck In Loop

I recently created a village at my base and made two Iron Golems to guard them. One Iron Golem attackeda random Enderman during the day who promptly teleported away. The Iron Golem is still attacking mid-air where the Enderman was hours or realtime later. Now he will not return to his duties (The other one got stuck in the nether so he's my only one, i realise i could build another but the bug is still there)

What I Expected: The Golem returns to protecting the villagers once the threat was gone.

Reproduction: Make/find village, make an Iron Golem and wait or cheaty spawn an Enderman in.