Index: openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl,v
diff -u -r1.317 -r1.318
--- openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl	20 Jul 2013 15:48:35 -0000	1.317
+++ openacs-4/packages/xowiki/tcl/xowiki-www-procs.tcl	7 Aug 2013 17:21:28 -0000	1.318
@@ -1609,11 +1609,11 @@
     set category_spec [my get_short_spec @categories]
     # Per default, no category fields in FormPages, since the can be 
     # handled in more detail via form-fields.
-    if {$category_spec eq ""} {return [list]}
+    if {$category_spec eq ""} {return ""}
 
     # a value of "off" turns the off as well
     foreach f [split $category_spec ,] {
-      if {$f eq "off"} {return [list]}
+      if {$f eq "off"} {return ""}
     }
     
     set category_fields [list]