Confirm mod version

Yes, I am using version 1.21

Describe the bug

Items stolen by kobolds might be duplicated when killing the kobold with a Looting enchanted item.
This includes shulker boxes (or other containers) with their content, therefore breaking the whole game economy.

Reproduction steps

1. Equip item you want duplicated in hand.
2. Get a kobold to steal it.
3. Hunt and kill that kobold with a weapon with Looting.
4. Repeat until you get 2 of that item.
5. If the duplicated was a container, add another item inside before withdrawing anything (Otherwise, contents stay "linked")

Screenshots

No response

Logs & crash-reports

No response

Mod version

2.0.4 (In the Medival MC modpack)

This was fixed in 2.0.5, please update your mod.