Index: openacs-4/packages/xotcl-core/tcl/context-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-core/tcl/context-procs.tcl,v
diff -u -r1.55 -r1.56
--- openacs-4/packages/xotcl-core/tcl/context-procs.tcl	12 Jul 2010 14:38:24 -0000	1.55
+++ openacs-4/packages/xotcl-core/tcl/context-procs.tcl	23 Feb 2011 12:32:43 -0000	1.56
@@ -532,7 +532,7 @@
     set query [ns_urlencode $var]=[ns_urlencode $value]
     foreach pair [split $old_query &] {
       foreach {key value} [split $pair =] break
-      if {$key eq $var} continue
+      if {[ns_urldecode $key] eq $var} continue
       append query &$pair
     }
     return $query