Since ImmersiveMC stores its data separately, DataFixerUpper can't reach it to patch it during loading. So, mainly for ItemStacks, we need to attempt to "run" DFU on it at load time in-case it needs upgrading.

Having this block 1.5.0 beta 2 due to 1.20.5 changing the data format of items (which we store) to an extreme degree.

Done for 1.21.1, need to downport it everywhere else.

• 1.20.4
• 1.20.2
• 1.20.1
• 1.19.4
• 1.19.3
• 1.19.2
• 1.18.2