[[!comment format=mdwn username="https://www.google.com/accounts/o8/id?id=AItOawmGxww5ON3nilm7moGQCWJPnMEdRwNvb7U" nickname="Chris" subject="comment 2" date="2013-10-29T22:01:04Z" content=""" I didn't think about idempotency. Erroring out seems like the best option now. """]]