WildStacker duping with other plugins that modify stack limits

[alek4032]

Minecraft's Version

UniverseSpigot version 1.21.8-ver/1.21.8-stable
AND
Paper 1.21.8-60 (last updated version)

Plugin's Version

Wildstacker-2025.2-b166 (latest dev build)
Also tested with
2025.2 (latest stable build)

Describe the bug

WildStacker stopped respecting plugin stack limitations/requirements like it usually does. Everything runs perfectly fine when we're using WildStacker-2025.1-b146, but the newer versions released after that seem to have issues.

The exact issue was tested with ExecutableItems, their latest build. Have an item that has a certain stack limit, drop multiple on the ground, and walk up to it. It will now dupe heavily without decreasing the stack size on the ground.

This was tested on a clean servers with just wildstacker, a couple of the executable plugins, vault and viaversion installed. The issue does NOT happen if wildstacker is not on the server.

We already reported the issue to the dev of the executable plugins and he referred us back to here because it wasn't his plugin causing the issue.

To Reproduce

1: Install latest Executable plugins on servers together with latest Wildstacker version
2: Create any custom item and limit its stack size to something other than default
3: Drop it on the ground, walk up to it and watch it dupe a lot, really fast. Inventory fills up but stack size on the ground stays the same

Additional Information

Link to video showing the dupe happening:
https://youtu.be/oO4aqgLW17g

[alek4032]

config (11).yml

Here is our WildStacker config in case its needed

[OmerBenGera]

Check out latest dev build, let me know if it is fixed

[alek4032]

Check out latest dev build, let me know if it is fixed

Hey, I have tested with the latest dev build and if I drop 10 items now, only 1 is picked up. The rest of the items get deleted. I've tested this with multiple other non-vanilla items as well and the same seems to happen

[alek4032]

https://youtu.be/y6Y2XhsN7uU

Here's a video showing the new behavior

[Yive]

New behaviour only happens with fix-stack: true in the WildStacker config. When I did my PR, I sadly forgot to copy the provided config in this issue.

Edit: Tried to implement a fix for when the server is using fix-stack: true, but I couldn't find a way that worked for both. Also I just realised my PR created a bug as the plugin creates a dead item entity so it will always consider the pickup item as dead when it is above the max stack size.

All I know is that this problem got introduced with 19957c4