I was adapting the resource pack for clothes and added Russian language support to nbt.display.Name
here is an example:
nbt.display.Name=iregex:.(jarl|\u044F\u0440\u043B).
i use https://itpro.cz/juniconv/ to turn russian letters into a special code, otherwise the names won't work, at least in optifine
"\u044F\u0440\u043B" - "ярл"
But in this case, when renaming an item in Russian,
CITResewn does not support arbitrary case.


but arbitrary case in english is still supported:

You have some impeccable timing there, I literally just merged a PR to fix this.

Will be fixed in 1.1.0 that'll release soon for 1.19 and then later for 1.18

You have some impeccable timing there, I literally just merged a PR to fix this.

Will be fixed in 1.1.0 that'll release soon for 1.19 and then later for 1.18

Yes I just noticed it 😸
sorry for carelessness