Index: openacs-4/packages/xowiki/tcl/xowiki-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/xowiki-procs.tcl,v
diff -u -r1.409 -r1.410
--- openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	28 Jun 2010 07:17:59 -0000	1.409
+++ openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	29 Jun 2010 08:52:12 -0000	1.410
@@ -3160,9 +3160,10 @@
   }
 
   Page instproc unset_temporary_instance_variables {} {
-    # never save/cache __ia or __field_in_form
+    # don't marshall/save/cache the following vars
     my array unset __ia
     my array unset __field_in_form
+    my array unset __field_needed 
   }
 
   Page instproc map_categories {category_ids} {