add_auctions_to_vendor_page

add_filter( 'remove_auctions_from_woocommerce_product_query', 'add_auctions_to_vendor_page', 1,2 );
function add_auctions_to_vendor_page($result, $q){

    if(isset($q->query_vars['vendor_shop']) && !empty($q->query_vars['vendor_shop'])) {
        return true;
    }

}