If you search for a combination of tags including "order:" (or even it alone), the bolded 'Search: X' line in the pools section will not appear and the keyboard navigation will not work. The tags are still properly displayed in the url. Example: http://danbooru.donmai.us/posts/2107985?tags=pool%3A2278 vs http://danbooru.donmai.us/posts/2107985?tags=pool%3A2278+order%3Ascore