Describe the Bug

I have setup a conveyor belt which throws items into a nether portal, and on the other side, there is a conveyor belt which throws the items back into the portal. It seems like if you go into the portal, then come back out, it has a higher chance of duping. I think it has to do with desync between the overworld and nether saving chunk data? I don't know if this is fixable.

Reproduction Steps

1. Build a conveyor belt which loops in and out of a nether portal.
2. Walk through the portal and back?
3. Watch items magically come into existence?

Expected Result

At no point, more items show up.

Screenshots and Videos

Here is a video of me turning 3 obsidian into 10 obsidian. https://youtu.be/_XC3D4Zplko

Crash Report or Log

No response

Operating System

Windows 10

Mod Version

0.5.1f

Minecraft Version

1.20.1

Other Mods

None, I made a clean instance to test this.

Additional Context

This appears to be talking about the same exploit but I am unsure. #193

correct, duplicate of #193