Index: clone.module
===================================================================
--- clone.module	(revision 2602)
+++ clone.module	(working copy)
@@ -107,6 +107,7 @@
   // Only affect the menu path created by this module, and only if the node admin theme checkbox is set.
   if (variable_get('node_admin_theme', '0') && arg(0) == 'node' && arg(2) == 'clone') {
     global $custom_theme;
+    unset($GLOBALS['theme']);
     // Use the chosen theme ID, or the front-end theme if one hasn't been selected.
     $custom_theme = variable_get('admin_theme', '0');
     // From system.module, this css file is required in the admin view.