CC-3939: Media Library -> Edit Metadata: click 'Cancel' will keep in editing

page after error message appears

- fixed

airtime_mvc/application/forms/EditAudioMD.php

@@ -136,7 +136,7 @@ class Application_Form_EditAudioMD extends Zend_Form
             'ignore'   => true,
             'class'    => 'ui-button ui-state-default ui-button-text-only md-cancel',
             'label'    => 'Cancel',
-            'onclick' => 'javascript:document.location = document.referrer',
+            'onclick' => 'javascript:document.location.href = "/Playlist"',
             'decorators' => array(
                 'ViewHelper'
             )