Advanced search form not wroking

This bug is for the 6.* dev.
The problem is that the Advanced search is not working at all. The eason is that the function sphinx_search_form_submit calls _sphinx_build_advanced_query with $form_state['values'] as param but the _sphinx_build_advanced_query expects only $form_state so it ends with wrong query and empty result cause the $form_state['values'] for is is NULL.