Describe the Bug

Display link + lectern can be used to fake the contents of a signed book.

Reproduction Steps

1. Sign and close a book
2. Place in lectern
3. Lectern is display link target
4. Source is whatever you please. (Nixie tubes can be used to forge whatever text you want)
5. Remove book
   ...

Expected Result

Either
A) Book is not modified
B) Author is changed to data gatherer.

Screenshots and Videos

No response

Crash Report or Log

No response

Operating System

Windows 10

Mod Version

0.5.1f

Minecraft Version

1.20.1

Forge Version

47.2.23

Other Mods

No response

Additional Context

No response