Describe the bug
When i try to create a WrappedBlockData in order to make a MultiBlockChangeInfo, i get an unexpected NPE: http://p.tomcraft.fr/c10d11f.txt

To Reproduce
Just try a code like this: http://p.tomcraft.fr/520f3.png

Expected behavior
No NPE (This code used to work before (2 month ago, at most))

Version Info
https://pastebin.com/DzFhfQdm
I removed some private informations from the paste.

Can you try this with an older version (like 4.4.0) and see if it still happens?

I tired with version 4.4.0, and it didn't worked: https://i.helliotk.fr/cjpWM4G