Armor on piglins detach from their bodies while bartering

When a Piglin trades, it does its normal behavior but the armor on it looks around independantly.

What I expected to happen was...:
The armor moves with the Piglin while trading

What actually happened was...:
The armor glitches off of the piglin

Steps to Reproduce:
1. Give a piglin summoned with /summon piglin ~ ~ ~ {IsImmuneToZombification:1b} in the overworld a full set of armor.
2. Drop a few gold ingots.
3. Watch the helmet and other armor.