As can be seen in its [timeline](https://scifi.stackexchange.com/posts/255005/timeline), a recent answer on Science Fiction & Fantasy ended up twice in the First Answers review queue: [\[1\]](https://scifi.stackexchange.com/review/first-answers/183607) and [\[2\]](https://scifi.stackexchange.com/review/first-answers/183608). This normally only happens in case of review audits; as the commenters here noticed, this time it seems an edit erroneously pushed it in the queue, which is clearly visible when looking at the timestamps (click 'toggle format' to show them):

[![enter image description here][1]][1]

(After this question was posted, the answer got a [third](https://scifi.stackexchange.com/review/first-answers/183609) First Answers review item, unrelated to any visible action. The answer has since been deleted, so the above timeline link now 404s.)

This is a different case than when two reviewers end up review the same item (because one of them took more than 5 minutes, which releases the 'soft lock' on the item so that it's open for other reviewers). Then we end up with one First Answer review item with two 'results'.

  [1]: https://i.sstatic.net/VtuZc.png