gistfile1.txt

add_action( 'elementor/query/onmarketauctionpropertyquery', 'elementor_query_on_market_auction_only' );
function elementor_query_on_market_auction_only( $query )
{
    $_GET['department'] = 'auction';
    $_REQUEST['department'] = 'auction';
    
    PH()->query->property_query( $query );

    // Set the custom post type 
    $query->set( 'post_type', [ 'property' ] );
}