Zombified piglins do not drop items they originally had after picking up a fallen item.

Steps to Reproduce:
1.Drop the iron sword near a naturally spawning, zombified pigrin that can pick up items.
2.Zombified piglins pick up the iron sword.

Observed Results:
Zombified piglins don't drop the golden sword they are holding.

Expected Results:

Zombifired piglins drop the golden sword they are holding.