replace_hotbar duplicating items

[HaZmX]

I've upgraded my fabric 1.20.4 server to 1.21, and this script is now duping items whenever the original stack gets refilled, it would be nice if it worked as before, makes building larger projects easier and more enjoyable

To Reproduce
Steps to reproduce the behavior:

1. use any consumable item or block
2. Use block or item until the stack runs out, it will then get refilled by a second stack in your inventory
3. block or item has been duplicated

Explanation

whenever you run out of an item it pulls an items from a new stack but also dupes that stack at the same time.

Environment

• Carpet version: latest version
• Minecraft version: 1.21

would be greatly appreciated if someone can fix this though I know 1.21 has changed a lot of things that could make it difficult to update