FIX Use a query filter rather than query clause for applying the stage filter to the query
FIX Use a query filter rather than query clause for applying the stage filter to the query

stephenmcm/silverstripe-solr,nyeholt/silverstripe-solr,stephenmcm/silverstripe-solr,stephenmcm/silverstripe-solr,nyeholt/silverstripe-solr,nyeholt/silverstripe-solr,stephenmcm/silverstripe-solr,nyeholt/silverstripe-solr