Reference what is default is in core - model or controller, that checks if no sort selected, use dt_pub_date.
I've set it to Relevance by default in the helpers/hPreference file like this: I replaced this
function osc_default_order_field_at_search() {
return (getPreference('defaultOrderField@search'));
} with this
function osc_default_order_field_at_search() {
return 'relevance';
// We force 'relevance' as the new default value!
} and it works perfectly, but when I later select most recent in the search, it switches to Relevance. If you want, I can send you the URL of my website privately so you can see it. Sorry for my English; I'm using Google Translate
