Right, when I removed the update check for you it entered the “new submission” path … which is why the page refresh to edit didn’t fire.
The update check is in place with this beta so the correct logic paths are followed again. So there would be no email to the user after an edit. Just like it was originally.
With that said … there a message/notice that is displayed right on the page above the edit form stating the the submission is under review. Seems redundant and maybe a little spammy to send an email too.