function wc_change_pre_get_terms( $terms_query ) {
	$args = &$terms_query->query_vars;

	// Put back valid orderby values.
	if ( 'menu_order' === $args['orderby'] ) {
		$args['orderby']               = 'name';
		$args['force_menu_order_sort'] = true;
	}

	if ( 'name_num' === $args['orderby'] ) {
		$args['orderby']            = 'name';
		$args['force_numeric_name'] = true;
	}

	// When COUNTING, disable custom sorting.
	if ( 'count' === $args['fields'] ) {
		return;
	}

	// Support menu_order arg used in previous versions.
	if ( ! empty( $args['menu_order'] ) ) {
		$args['order']                 = 'DESC' === strtoupper( $args['menu_order'] ) ? 'DESC' : 'ASC';
		$args['force_menu_order_sort'] = true;
	}

	if ( ! empty( $args['force_menu_order_sort'] ) ) {
		$args['orderby']  = 'meta_value_num';
		$args['meta_key'] = 'order'; // phpcs:ignore
		$terms_query->meta_query->parse_query_vars( $args );
	}
}