I've done that with music a few times. And for whomever mentioned Baen above, that's also been done with Drake's Slammers and the Falkenberg's Legion stories. (Though each had minor edits/additions to the stories themselves, it was still essentially the same story.)
In those cases there isn't a lot to be done, but it would be nice is Connect would list a "first published" date in addition to the date that their e-version was published. I don't suppose Sony did anything 'wrong' by listing their publication date as the publication date, but it does seem a little misleading.