Type of bug

Exploit

/ess dump all output

https://essentialsx.net/dump.html?id=8748658971b247f0b41d729841a0f626

Error log (if applicable)

No response

Bug description

You can put bottles in the sign and take them out as potions. It's all on the video.
https://youtu.be/FEqBu_7aEMw

Steps to reproduce

1. take 2 potions: Strength 2 (normal)
2. take 4 bottles of water (4 = an example)
3. Type /itemdb while holding strength II potion -> we use "potofstrii" name
4. Make trade sign:
   [Trade]
   10
   1 potofstrii:2

Try putting in water bottles.
INFO: If it doesn't work, break the sign and create new:

[Trade]
10
1 potofstrii:1

That is, we put 1 bottle in the sign.
Now try adding water bottles - it should work. :)
You put the water bottles as potions (str. II). Now destroy the sign and you get the potions.

In my opinion, randomly it works. You sometimes have to destroy a few times and create new.

Plugins used: EssentialsX + Vault

Expected behaviour

No copying potions

Actual behaviour

copying potions