ajax comments close after submission in challenges, but not for ideas.

[Artmir]

When leaving a comment in challenge content type, after user presses 'send' the comment is posted and the form is closed. (this is excellent). However, when a user wants to post a comment on Idea content type, after user presses 'send' a message pops up saying the comment has been posted, but the form doesn't close automatically and the comment is not visible. The user has to refresh the page in order to see that the comment has been published.

Update: also when replying to comments in challenge (nested), they behave the same as in the idea.