Index: includes/bootstrap.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/bootstrap.inc,v
retrieving revision 1.145.2.3
diff -u -p -r1.145.2.3 bootstrap.inc
--- includes/bootstrap.inc	7 May 2007 04:19:54 -0000	1.145.2.3
+++ includes/bootstrap.inc	5 Jun 2007 16:16:07 -0000
@@ -814,6 +814,9 @@ function _drupal_bootstrap($phase) {
       break;
 
     case DRUPAL_BOOTSTRAP_SESSION:
+      if (session_id()) {
+        session_write_close();
+      }
       require_once variable_get('session_inc', './includes/session.inc');
       session_set_save_handler('sess_open', 'sess_close', 'sess_read', 'sess_write', 'sess_destroy_sid', 'sess_gc');
       session_start();