The article we had a problem with was a problem not because it was moderated. A moderated article is simply given a different visibility while it is awaiting approval.
The only reason the article was empty is that the user used characters in the title from another alphabet and our database wasn't equipped to deal with the specific characters that were used. While adding support for these characters fixed the problem, some changes to the encoding process should help prevent the article from blanking if undefined characters are used in the future.
While this may potentially reoccur, for now I have marked as fixed for the next build.