Editing a question in the Close Votes review has a rather unexpected consequence: the question is immediately removed from the queue. I'm pretty certain that not all people noticed this. See for example this review of an obviously bad question: it received three close votes and then somebody went in an edited a typo in the question title, with the effect of removing the question from the queue (note: that question was improved later).
I think people should be warned about the consequences, with a message like: "Please only edit questions that you think should not be closed after your changes."
For reference: