Bug #8055: Fix array_keys() location

diff --git a/imp/lib/Imap/Tree.php b/imp/lib/Imap/Tree.php
index 01a68cf..352a425 100644 (file)
--- a/imp/lib/Imap/Tree.php
+++ b/imp/lib/Imap/Tree.php
@@ -268,7 +268,7 @@ class IMP_Imap_Tree
         $this->_changed = false;
         $this->_trackdiff = true;
 
-        return array_keys(array_diff(get_class_vars(__CLASS__), array('_instance')));
+        return array_diff(array_keys(get_class_vars(__CLASS__)), array('_instance'));
     }
 
     /**