Issue: Redirect is Duplicate Content

This is a problem for SEO. While REDIRECT is quite a nice feature for finding articles with AKA titles, it creates duplicate content (a second URL with the same page content) every time it is used. This results in a negative effect on the pagerank of each of the copies.

This can be fixed by leaving the existing functionality in place for human users, but by making some slight changes. If we detect that the current user is a crawler bot, use a 301 redirect rather than outputting a page.