Issue #3081679 by eiriksm: AjaxResponse::getCommands has wrong return type

core/lib/Drupal/Core/Ajax/AjaxResponse.php

@@ -58,8 +58,8 @@ public function addCommand(CommandInterface $command, $prepend = FALSE) {
   /**
    * Gets all AJAX commands.
    *
-   * @return \Drupal\Core\Ajax\CommandInterface[]
-   *   Returns all previously added AJAX commands.
+   * @return array
+   *   Returns render arrays for all previously added commands.
    */
   public function &getCommands() {
     return $this->commands;