Huh, that link is now (or has been all along and I didn't notice because my browser was pulling up the cached version?) redirecting to the regular, paginated, v

Huh, that link is now (or has been all along and I didn't notice because my browser was pulling up the cached version?) redirecting to the regular, paginated, version of the article. Does anyone know how this is done (HTTP referrers?) and/or how it can be circumvented?