Normally, it is impossible to copy a written book which is a "Copy of a copy".
Unexpected behavior occurs when this crafting recipe is attempted using a Crafter.

Steps to Reproduce:

  [Step 1] Create a written book.
  [Step 2] Copy the written book, then copy the copy.
  [Step 3] Place the "Copy of a copy" written book in the crafter along with a Book and Quill
  [Step 4] Power the crafter with redstone.

Observed Results:

The crafter spits out the "Copy of a copy" book and deletes the Book and Quill.

Expected Results:

The craft should fail, and both items should remain in the crafter.

Screenshots/Videos:

2023-10-23 20-10-36.mp4