It doesn't look like this applied when there is no explicit sort set.  (e.g. default relevance sort).

![no-relevance-check](https://cloud.githubusercontent.com/assets/96776/2910549/8ef30206-d646-11e3-822a-bec579d62498.png)


Should the checkmark be next to the Relevance option when there is no sort explicitly set (akin to the default per_page param)?