fixed

backup/util/ui/restore_ui.class.php

@@ -224,13 +224,19 @@ class restore_ui extends base_ui {
     /**
      * Cancels the current restore and redirects the user back to the relevant place
      */
-    public function cancel_restore() {
+    public function cancel_process() {
         //Delete temporary restore course if exists.
         if ($this->controller->get_target() == backup::TARGET_NEW_COURSE) {
             $this->cleanup();
         }
         parent::cancel_process();
     }
+    /**
+     * wrapper of cancel_process, kept for avoiding regression.
+     */
+    public function cancel_restore() {
+        $this->cancel_process();
+    }
     /**
      * Gets an array of progress bar items that can be displayed through the restore renderer.
      * @return array Array of items for the progress bar

backup/util/ui/restore_ui_stage.class.php

@@ -333,7 +333,7 @@ class restore_ui_stage_settings extends restore_ui_stage {
         $form = $this->initialise_stage_form();
 
         if ($form->is_cancelled()) {
-            $this->ui->cancel_restore();
+            $this->ui->cancel_process();
         }
 
         $data = $form->get_data();