Switching between mobile and full site on the Search_Results page has issues

[rsacksteder]

Switching between the two page versions results in errors such as:

NoMethodError in FingeringsController#search_results

undefined method `[]' for nil:NilClass

For some reason the params[:fingering] gets cleared out and is nil so when the search_results page tries to populate itself with the results of the search it results in the error above.