WP_Privacy_Policy_Content::_policy_page_updated

	 * @param int $post_id The ID of the updated post.
	 */
	public static function _policy_page_updated( $post_id ) {
		$policy_page_id = (int) get_option( 'wp_page_for_privacy_policy' );

		if ( ! $policy_page_id || $policy_page_id !== (int) $post_id ) {
			return;
		}

		// Remove updated|removed status.
		$old          = (array) get_post_meta( $policy_page_id, '_wp_suggested_privacy_policy_content' );
		$done         = array();
		$update_cache = false;

		foreach ( $old as $old_key => $old_data ) {
			if ( ! empty( $old_data['removed'] ) ) {
				// Remove the old policy text.
				$update_cache = true;
				continue;
			}

			if ( ! empty( $old_data['updated'] ) ) {
				// 'updated' is now 'added'.
				$done[]       = array(
					'plugin_name' => $old_data['plugin_name'],
					'policy_text' => $old_data['policy_text'],
					'added'       => $old_data['updated'],
				);
				$update_cache = true;
			} else {
				$done[] = $old_data;
			}
		}

		if ( $update_cache ) {
			delete_post_meta( $policy_page_id, '_wp_suggested_privacy_policy_content' );
			// Update the cache.
			foreach ( $done as $data ) {
				add_post_meta( $policy_page_id, '_wp_suggested_privacy_policy_content', $data );
			}