When canceling an edit, the Cancel button is confusing.
I wanted to edit an issue's comment, then I changed my mind. I pressed `<esc>` and saw this popup.

At first I pressed cancel, because that is what I wanted to do. But then it cancelled the "cancel edit" action...
Might I suggest here using natural language as a model? Instead of [Cancel | **OK**] it seems to me that the natural way to respond here would be [No | **YES**]
issue