From 4417a705cf9e410ac1ed32c982f592c6720da4c8 Mon Sep 17 00:00:00 2001
From: Sam Chaffee <sam@moodlerooms.com>
Date: Thu, 20 Jun 2013 15:54:03 -0400
Subject: [PATCH] MDL-40258: Fixed invalid json string error in file-picker

---
 lib/filelib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/filelib.php b/lib/filelib.php
index 7da36e01e4c..a3976ba3368 100644
--- a/lib/filelib.php
+++ b/lib/filelib.php
@@ -1928,7 +1928,7 @@ function file_get_typegroup($element, $groups) {
         }
         $result = array_merge($result, $cached[$element][$group]);
     }
-    return array_unique($result);
+    return array_values(array_unique($result));
 }
 
 /**