Index: openacs-4/packages/acs-tcl/tcl/form-processing-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/form-processing-procs.tcl,v
diff -u -r1.70 -r1.71
--- openacs-4/packages/acs-tcl/tcl/form-processing-procs.tcl	10 Oct 2017 16:50:10 -0000	1.70
+++ openacs-4/packages/acs-tcl/tcl/form-processing-procs.tcl	21 Jan 2018 18:47:21 -0000	1.71
@@ -1163,6 +1163,7 @@
 
             if { [info exists __key] && ![ad_verify_signature "$__key:$form_name" $__key_signature] } {
                 ad_return_error "Bad key signature" "Verification of the database key value failed"
+                ad_script_abort
             }
         }