Bug Report: Book and Quill Page Input Limit & Autosave Issue

Description:
There are two issues when using the Book and Quill in Minecraft:

1. It is not possible to fill an entire page with text — characters stop appearing when the page is only about half full.

2. Autosave does not always work correctly — sometimes previously deleted text reappears after closing the book.

Steps to Reproduce (Issue 1 – Page Limit):

1. Obtain a Book and Quill.

2. Open it and start typing on a new page.

3. Continue entering text.

Expected Result:
The player should be able to use the full visible area of the page.

Actual Result:
Text input stops when the page is only partially filled.

Steps to Reproduce (Issue 2 – Autosave):

1. Open a Book and Quill.

2. Type some text.

3. Delete that text and immediately write something new.

4. Close the book.

Expected Result:
The most recent version of the text should be saved.

Actual Result:
The book sometimes reverts to the previous version (before deletion), as if autosave did not register the latest changes.