When an unclear or otherwise lacking question is posted on this site, it often happens that one of the more experienced users posts a comment asking for clarification. Fairly often, the asker responds in a comment to the original post, attempting to clarify or otherwise improve the question. With the additional information, the question may (or may not...) become significantly clearer/better. However, the original post is often left unedited.
There is an issue concerning this situation that I've bumped into many times: When reviewing (in the sense of the site's review queues) a question where something like this has happened, should a reviewer take the information contained exclusively in the comments into account when deciding whether to e.g. cast a vote to close the question?
I'm looking to establish an "official course of action" for this type of scenario. Feel free to post your suggestion as an answer.