Interesting. I've actually never seen that dialog - I know there's an option to enable/disable running the previous successful build, so perhaps it shows a dialog first. You can look into disabling it if you won't use it.
One reason this can be useful, however, is if you want to remind yourself what the bug was that you were working on. Not all things can be fixed in edit-and-continue, and you might need a memory jog.
