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 -r1.449 -r1.450
--- openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	27 Dec 2011 14:19:55 -0000	1.449
+++ openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	27 Dec 2011 15:27:05 -0000	1.450
@@ -1902,7 +1902,7 @@
     if {$update_references || [my set unresolved_references] > 0} {
       my references_update [lsort -unique [my set references]]
     }
-    my unset references
+    my unset -nocomplain references
     #
     # handle footer
     #