Description
Caused the server to crash itself by placing a cooking pot on top of the stove block.

Steps to reproduce:
Created a stove, for the first time, placed it down.
Created a cooking pot, for the first time.
Placed cooking pot on top of the stove.
Crash.

Expected behavior:
I expected the achievement "Dinner's Served" and to open the pot GUI

Logs
https://mclo.gs/X7JSJCx

Did a roll back, tried the stove and pot in another location. Same result

Mod list:
forge-1.18.1-39.0.45-universal.jar, ImmersiveEngineering-1.18.1-7.1.0-145.jar, collective-1.18.1-3.8.jar, appleskin-forge-mc1.18-2.2.0.jar, treeharvester_1.18.1-4.2.jar, journeymap-1.18.1-5.8.0beta10.jar, AutoRegLib-1.7-52.jar, Quark-3.0-334.jar, StorageDrawers-1.18.1-10.1.1.jar, jei-1.18.1-9.2.3.78.jar, repurposed_structures_forge-4.0.9+1.18.1.jar, Repurposed_Structures-Immersive_Engineering_v2.zip, EasyMagic-v3.2.1-1.18.1-Forge.jar, PuzzlesLib-v3.1.3-1.18.1-Forge.jar, TradingPost-v3.1.2-1.18.1-Forge.jar, EnchantingInfuser-v3.1.1-1.18.1-Forge.jar, FarmersDelight-1.18.1-1.0.2a.jar

Forge 39.0.45 removed a reference to a broken method for saving data, which I accidentally left being used. I'll have to release a patch to take my reference out later, but gotta figure it out first.

Please downgrade your Forge to version 39.0.44 in the meantime.

Should users downgrading their Forge versions itself be enough or do we need to do any changes server side?

Server and client must both downgrade.

Fixed on commit 8fb8892, the 1.0.3 patch is under review on CF currently.