Just had a case during review process, where two identical questions, both asked by first time users, appeared in my queue. Yet, I can not flag one as duplicate of the other since neither has an accepted or upvoted answer.
In my opinion, it would help, if I could flag such a question as duplicate. Particularly, if it's phrased identically.
In any case, it would be nice to see identical titles (and question text) pop up in the list of possible duplicates. If I hadn't gotten both right after each other for review, I wouldn't have known about it.
In the end, I flagged the second question for moderator attention. Is there a more elegant solution?