How do you view the original photo when making edits?
In iPhoto, if you pressed Shift when you were making edits to a photo, it would show you the original photo without reverting back to it. Is there a way to do this in the new Photos program? I've tried Shift but it doesn't work. I also tried Command, Option, Control, Function...none of these work. Any ideas?
MacBook Pro with Retina display, OS X Mavericks (10.9)
