Fix for Optifine CIT Bug

What's the issue about?

A small but irritating bug was found in Optifine CIT: if any enchantment identifier is missing from your modpack, it interferes with the proper functioning of resource packs with customized enchanted books. This issue was particularly noticed by users of the popular RL Enchanted Books resource pack, but it also affects many other similar packages.

What result does the fix provide?

Thanks to this modification, various improvements become possible. Modpacks will now be able to freely apply updated versions of resource packs for items and enchanted books using CIT technology, even if they don't include ALL the enchantment options provided by the resource pack authors.

Suitable for any user

The advantage is obvious: you no longer need to torture yourself searching for each specific identifier or give up attractive visual design just because not every enchantment is applicable in your modpack.