fix-12239-review-page-500-with-migration
master
Signed-off-by: Andrew Thornton <art27@cantab.net>
Only check for a review if we are replying to a previous review. Prevent the NPE in #12239 by assuming that a comment without a Review is non-pending. Fix #12239 Signed-off-by: Andrew Thornton <art27@cantab.net>