Prevent useless comment fetching for screenshots and file attachments.
Review Request #3479 - Created Nov. 8, 2012 and submitted
Prevent useless comment fetching for screenshots and file attachments. Screenshots and file attachments without comments weren't having their _comments variable set, which was causing us to do a fetch later on for each screenshot and file attachment. We now make sure to always set _comments in review_detail, preventing these extra, useless fetches.
Tested on some review requests with many active and inactive screenshots and file attachments. Saw that the extra queries went away and page load time decreased.