Ticket #55499: 55499.3.diff

src/wp-includes/class-wp-customize-manager.php

@@ -3283 +3283 @@
          * Filters heartbeat settings for the Customizer.
          *
          * @since 4.9.0
-         * @param array $settings Current settings to filter.
-         * @return array Heartbeat settings.
+         * @param  array  $settings Current settings to filter.
+         * @return array  Heartbeat settings.
+         * @global string $pagenow Get the current screen object.
          */
         public function add_customize_screen_to_heartbeat_settings( $settings ) {
                 global $pagenow;