I barterd with piglins but did not give me anything

So on Minecraft I tried bartering with piglins and even though I did give it a gold ingot it didn’t give me anything back. I am on survival mode. Please fix, I wasted a gold ingot on a piglin and I got nothing.

How to reproduce:

1. Go to the nether on creative mode.
2. /give @s gold_ingot 2
3. /summon piglin
4. Give it a gold ingot.
5. It will give you something.
6. /gamemode 0
7. Give the piglin a gold ingot.

Obseverd results: The piglin doesn’t drop anything.

Expected results: It drops some items.

Note: I wasn’t wearing any gold armour.