Put the summary of the bug you're having here
What I expected to happen was...:
Adding a space in text in book and quill item.
What actually happened was...:
It added a new page to the book and quill. I couldn't deactivate right arrow so when I pressed space, it clicked arrow instead. This works in reverse with left arrow as well.
Steps to Reproduce:
1. Create new page, which will highlight right arrow
2. Pressing space activates arrow
3. ...
Duplicate of MC-145798.