Issue #1776030 by sun: Fixed Machine name JavaScript behavior is broken, since...

Issue #1776030 by sun: Fixed Machine name JavaScript behavior is broken, since jquery.once isn't loaded.

core/modules/system/system.module

@@ -1936,6 +1936,7 @@ function system_library_info() {
     ),
     'dependencies' => array(
       array('system', 'jquery'),
+      array('system', 'jquery.once'),
       array('system', 'drupal'),
       array('system', 'drupal.settings'),
     ),