Mod loader and version-
Minecraft 1.20.1
Quilt 1.20.1 (0.26.4)
travelersbackpack-fabric-1.20.1-9.1.18

• Describe the bug
  Backpack duplicates with trinkets integration on.

• Write steps to reproduce the bug

1. Turn on trinkets integration.
2. Take two of the same backpacks with different items in them.
3. get 2 backpacks
4. Place one of them in the trinket slot of the backpack full of items
5. You take the second one, click on it and move it to the trinket slot, and replace it.

and so you have 2 backpacks with the same content

Video:
https://github.com/user-attachments/assets/31c76e3b-ab70-4b9e-9b30-bdf6af0d0edc