It's debatable actually. We think that code review is a critical process and only want to review features which fulfill the acceptance criteria.
So, If it fails then it will have to go through the QA process again.
Though we keep experimenting, what I think is Code Review is done to polish things, making sure standards are being followed, do the refactors if possible etc. But if it's not even meeting the acceptance criteria then its just a waste of code reviewer's time.
I have tried this before and what i explained above is the same reason we switched to this approach.
Test first !! Code Review!! Sanity tests again!! Done!!
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