2794: Display changes corresponded to comment regions in the code when the diff is updated

daniel*******@gmai***** (Google Code) (Is this you? Claim this profile.)
3845, 4380

What version are you running?

What's the URL of the page this enhancement relates to, if any?
It relates to the comments/issues on a review request.

Describe the enhancement and the motivation for it.
When a comment on a diff is posted against a review request it typically means I expect a change to be made, especially if I mark as an issue. When the review requester updates the diff and/or marks the issue as resolved I would like to be able to see the resolution in the new diff. In a large diff it can be slow to locate the corresponding code and to cross reference with my comments. In the general sense I'd like to be able to view a 'diff of diffs' or 'corresponding diff' for any areas I (or anyone else) commented on in the new revision.

What operating system are you using? What browser?
I'm using Windows 7 and Firefox 16.0.2

Please provide any additional information below.
I believe this feature would improve the user experience around iterative reviewing of large change sets under ReviewBoard. At present it is functional but can be a little frustrating.