I just made a bunch of edits to a file that I didn't realize I had open twice. I was making my changes in the [Read Only] instance. I closed the original, but still cannot save. I get an error when I try to overwrite. [Read Only] still appears at the top despite this instance being the only place the file is open. It seems I'm going to lose my work, or have to save as a new project, which I'd like to avoid. This would also come in handy when multiple people have the same project open.