WordPress - Cat Filha com Template da Cat Pai

// FUNÇÃO QUE FAZ AS CATEGORIAS FILHAS USAREM O MESMO TEMPLATE DA CATEGORIA PAI
function load_cat_parent_template($template) {
$cat_ID = absint( get_query_var('cat') );
$category = get_category( $cat_ID );
$templates = array();
if ( !is_wp_error($category) )
$templates[] = "category-{$category->slug}.php";
$templates[] = "category-$cat_ID.php";
if ( !is_wp_error($category) ) {
$category = $category->parent ? get_category($category->parent) : '';
if( !empty($category) ) {
if ( !is_wp_error($category) )
$templates[] = "category-{$category->slug}.php";
$templates[] = "category-{$category->term_id}.php";
}
}
$templates[] = "category.php";
$template = locate_template($templates);
return $template;
}
add_action('category_template', 'load_cat_parent_template');