New Review System showing deleted answer
I've just reviewed a question from the "low quality posts" queue which appears to have been mod-deleted 2 days ago.
The post was not marked "deleted" during the review process so I suspect this is not an intended behaviour.
Update: It just happened again, this time for a post that was deleted more than 2 weeks ago. (A random walk through the review history page reveals several other examples)
Several incarnations of this have surfaced before and the response for those were -- no surprises here -- "Caching".
Two weeks is a rather long time for a caching issue, no?