Stope categories going out of order in WP pages/posts admin

cat-order

/* ----------------------------------- stop categories going out of order in WP page/poasts admin ---------------*/

function taxonomy_checklist_checked_ontop_filter ($args)
{

    $args['checked_ontop'] = false;
    return $args;

}

add_filter('wp_terms_checklist_args','taxonomy_checklist_checked_ontop_filter');