I was asked to review an answer flagged as possible spam. There was nothing spammy about the content, so I marked it as looks ok.

It appears however that the answer I was asked to review has been deleted because it was an exact copy of a positively scored answer on the same question.

But the review doesn't show me the other answers. So it appears as if I am expected to be able to tell the difference between two identical answers while seeing only one of them.

What exactly are the expectations on reviewers that such an audit is supposed to address?