Index: wp-includes/js/media-editor.js
===================================================================
--- wp-includes/js/media-editor.js	(revision 22975)
+++ wp-includes/js/media-editor.js	(working copy)
@@ -2,7 +2,8 @@
 // -----------------------------
 (function($){
 	// Stores the editors' `wp.media.controller.Frame` instances.
-	var workflows = {};
+	var workflows = {},
+		media = wp.media;
 
 	wp.media.string = {
 		// Joins the `props` and `attachment` objects,