No, just Dublin. It's a pain to be honest. Security at Dublin would meet the highest standard. Having to do it again at FRA or anywhere is a pain and doesn't seem to make a whole lot of sense. No issue with passport but that's what Schengen is about surely. You don't leave a secure zone when transferring so it seems strange to make you go through security again if you are coming from Dublin but not, say, from Paris or Rome.