WP_Navigation_Block_Renderer::get_unique_navigation_name( array $attributes ): string

659	private static function get_unique_navigation_name( $attributes ) {660		$nav_menu_name = static::get_navigation_name( $attributes );661 662		// If the menu name has been used previously then append an ID663		// to the name to ensure uniqueness across a given post.664		if ( isset( static::$seen_menu_names[ $nav_menu_name ] ) && static::$seen_menu_names[ $nav_menu_name ] > 1 ) {665			$count         = static::$seen_menu_names[ $nav_menu_name ];666			$nav_menu_name = $nav_menu_name . ' ' . ( $count );667		}668 669		return $nav_menu_name;670	}