Written book category shows "craftingScreen.tab.none"

Steps to reproduce

1. Get a book and quill
2. Sign it

Expected

When you look at the written book's tooltip in your inventory, it should show the category name. It should be one of these: "Construction", "Equipment", "Items", or "Nature".

Actual Result

The written book shows "craftingScreen.tab.none" in place of where the category name goes.