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 -N -r1.539 -r1.540
--- openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	3 Nov 2018 18:59:55 -0000	1.539
+++ openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	20 Jan 2019 20:41:14 -0000	1.540
@@ -1789,6 +1789,13 @@
     return 1
   }
 
+  Page instproc evaluate_form_field_condition {cond} {
+    #
+    # Can be refined
+    #
+    return 0
+  }
+
   Page instproc save args {
     if {![:can_save]} {error "can't save this page under this parent"}
     ${:package_id} flush_page_fragment_cache