Index: module.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/module.inc,v
retrieving revision 1.116
diff -u -p -r1.116 module.inc
--- module.inc	14 Apr 2008 17:48:33 -0000	1.116
+++ module.inc	15 Apr 2008 19:26:13 -0000
@@ -44,10 +44,10 @@ function module_iterate($function, $argu
  *   An associative array whose keys and values are the names of all loaded
  *   modules.
  */
-function module_list($refresh = FALSE, $bootstrap = TRUE, $sort = FALSE, $fixed_list = NULL) {
+function module_list($refresh = FALSE, $bootstrap = FALSE, $sort = FALSE, $fixed_list = NULL) {
   static $list, $sorted_list;
 
-  if ($refresh || $fixed_list) {
+  if ($refresh || $fixed_list || !is_array($list)) {
     unset($sorted_list);
     $list = array();
     if ($fixed_list) {