* Prevent NPE on commenting on lines with invalidated comments
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>
* Add hack around to show the broken comments
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Add migration and remove template hacks
Signed-off-by: Andrew Thornton <art27@cantab.net>