Index: modules/locale/locale.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/locale/locale.module,v
retrieving revision 1.256
diff -u -p -r1.256 locale.module
--- modules/locale/locale.module	24 Aug 2009 00:14:20 -0000	1.256
+++ modules/locale/locale.module	26 Aug 2009 10:33:02 -0000
@@ -379,7 +379,7 @@ function locale($string = NULL, $context
   $langcode = isset($langcode) ? $langcode : $language->language;
 
   // Store database cached translations in a static var.
-  if (!isset($locale_t[$langcode])) {
+  if (!isset($locale_t[$langcode]) && isset($language)) {
     $locale_t[$langcode] = array();
     // Disabling the usage of string caching allows a module to watch for
     // the exact list of strings used on a page. From a performance