Fix for javascript errors publishing reviews with screenshot comments.
Fix for javascript errors publishing reviews with screenshot comments.

Somewhere in here, we ended up trying to check the issue status for screenshot
comments. This works fine on 1.7 where screenshot comments with issues are a
thing, but broke on 1.6. This workaround was suggested in the bug.

Fixes issue 2707

1tush/reviewboard,KnowNo/reviewboard,davidt/reviewboard,chipx86/reviewboard,KnowNo/reviewboard,1tush/reviewboard,sgallagher/reviewboard,bkochendorfer/reviewboard,1tush/reviewboard,KnowNo/reviewboard,davidt/reviewboard,custode/reviewboard,1tush/reviewboard,custode/reviewboard,beol/reviewboard,davidt/reviewboard,bkochendorfer/reviewboard,1tush/reviewboard,chipx86/reviewboard,custode/reviewboard,1tush/reviewboard,reviewboard/reviewboard,davidt/reviewboard,beol/reviewboard,brennie/reviewboard,chipx86/reviewboard,custode/reviewboard,1tush/reviewboard,bkochendorfer/reviewboard,KnowNo/reviewboard,1tush/reviewboard,sgallagher/reviewboard,beol/reviewboard,sgallagher/reviewboard,brennie/reviewboard,reviewboard/reviewboard,brennie/reviewboard,reviewboard/reviewboard,chipx86/reviewboard,reviewboard/reviewboard,brennie/reviewboard,bkochendorfer/reviewboard,beol/reviewboard,sgallagher/reviewboard,1tush/reviewboard