I suppose that is correct, but not very useful. As I said, even though the badge shows a new message when I open the mail app it isn't on the list. I need to wait awhile (seems like forever, but probably something like 15 seconds) for the new message to actually appear on the list. At that point, it will indeed be marked as read.
It's not a big deal, but is certainly a minor annoyance.
It's not a big deal, but is certainly a minor annoyance.