Don't auto-collapse review boxes that have open issues or drafts.
It was easy to lose open issues after posting a change, since the boxes

would collapse. It was also annoying to have to reopen old reviews that

you were still commenting on (though at least the draft banner was

visible).
We now remove the collapsed state on boxes if they have any open issues

listed (and the viewing user is the author of the review request),

or if there's any draft reviews, making it easier to see the reviews

that still need attention.

Tested with a review request that had some draft replies, reviews with

some open issues, reviews with all closed issues, and reviews without

any issues.
The boxes were expanded only for the reviews added after the latest

change description and for drafts or ones with open issues.