Chiseled Bookshelves with NBT Data do not show books when placed.

Step 1

Create a copy of the placed Chiseled Bookshelf with Ctrl+Middle Click (make sure to have at least 1 book inside)

Step 2

Place the copy of the Chiseled Bookshelf

 

You will see a Chiseled Bookshelf with not books. You will not be able to take book out and when broken the books previously inside will drop.