Linking multiply Items at the same

[NgLoader]

Description

When you try to link one item to another one and the linked item is stacked, alle stacked backpacks get linked

Reproduction Steps

1. Create three backpacks
2. Stack two together
3. Type /zip link with the not stacked backpack
4. Then type /zip link and hold the other stacked backpacks
5. Both backpacks are now linked

Expected Behaviour

Unable to link stacked backpacks

Server Details

3630-Spigot-d90018e-ae8f5fc (MC: 1.19.3)

Zero Inventory Problems Version

1.0.0

Logs and Configs

https://pastebin.com/FJ26qnSJ

Extra Details

No response