Index: openacs-4/packages/acs-subsite/www/admin/rel-segments/constraints/one.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/www/admin/rel-segments/constraints/one.tcl,v
diff -u -N -r1.5 -r1.6
--- openacs-4/packages/acs-subsite/www/admin/rel-segments/constraints/one.tcl	7 Aug 2017 23:47:58 -0000	1.5
+++ openacs-4/packages/acs-subsite/www/admin/rel-segments/constraints/one.tcl	21 Jan 2018 00:35:29 -0000	1.6
@@ -40,8 +40,10 @@
 #  rel_segment
 
 if { ![db_0or1row select_constraint_properties {} -column_array props] } {
-    ad_return_error "Error" "Constraint #$constraint_id could not be found or is out of the scope of this subsite."
-    return
+    ad_return_error \
+        "Error" \
+        "Constraint #$constraint_id could not be found or is out of the scope of this subsite."
+    ad_script_abort
 }
 
 set segment_id $props(segment_id)