Include 'Reason for Editing' bug in full screen

We clean up a lot of posts in our forum and try to use the "reason for editing" as much as possible. I prefer the full-screen view to edit posts, but the downside is that I lose the ability to leave the reason for editing.

Instead, I always need to shrink the window to the smaller composer before I can leave a comment and save the edit.

I know I could solve this by leaving a comment before I go into the full-screen view, but that workflow only works if I know exactly (and only) what needs to change.

Would it be possible to retain this same top line at the top of the full-screen view?

Discuss this on our forum.