Index: openacs-4/packages/dotlrn-homework/www/toggle-homework-alert.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/dotlrn-homework/www/toggle-homework-alert.tcl,v
diff -u -r1.5 -r1.6
--- openacs-4/packages/dotlrn-homework/www/toggle-homework-alert.tcl	7 Aug 2017 23:48:10 -0000	1.5
+++ openacs-4/packages/dotlrn-homework/www/toggle-homework-alert.tcl	21 Jan 2018 00:38:37 -0000	1.6
@@ -34,6 +34,7 @@
 
     if { [llength $intervals] != 1 || [llength $delivery_methods] != 1 } {
         ad_return_error "[_ dotlrn-homework.lt_internal_error]" "[_ dotlrn-homework.lt_interval_or_del]"
+        ad_script_abort
     }
 
     # The get routines return a list of name/id pairs so extract the ids