When I click on the Retag button the page switches from https://stackoverflow.com/review/first-posts/... to the https://stackoverflow.com/posts/12488299/edit?tagsonly=true URL and never comes back.
However I can return to the review mode by clicking several times on the browser's Back button, and then I am allowed to click on I'm Done button.
In contrast, the Edit button keeps the same URL.
