Piglins close to each other can pick up same item.

Piglins close to each other can pick up the same gold ingot or other gold item simultaneously.
This means items can be duped by cramming piglins in a small area and throwing in a single item (if it is a stack they each take one of the stack so no problem is present). This creates multiple piglin trades with the same ingot or item duplication if they are killed.