Dupe

[gtutheg]

Minecraft version 1.17.1 but it may work in other versions as well

**Plugin Version**
 3.8 is free

**Write down the error**
there is a mod that you can use to close the inventoryrid so that it doesn't send a packet if you look at the item in the shop and then close it with this mod it stays with you so you can take the item out for free

**Reproduction**

here is a video introducing this dupe Only presented here with shulker https://youtu.be/RoyJ0A1kENA

**Expected Behavior**
The item is not duplicated

**Screenshots**
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