Unlike up/downvotes, flagging appears to (1) reload the page and (2) add it to browser history, thus affecting the "Back" button. So you may notice if you try t

Unlike up/downvotes, flagging appears to (1) reload the page and (2) add it to browser history, thus affecting the "Back" button. So you may notice if you try to scroll down, and it goes up to the top instead.