Fix replies to screenshot comments.
Review Request #1988 — Created Dec. 11, 2010 and submitted
Fix replies to screenshot comments. Replies to screenshot comments weren't being saved correctly, in that they weren't being associated with the parent comment. The 'reply_to' parameter wasn't being set. This led to the reply never being on the review.
New unit tests pass. I was hitting this with manual testing on the new webui branch, but it works now.