Index: openacs-4/packages/assessment/tcl/as-action-proc.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/assessment/tcl/as-action-proc.tcl,v
diff -u -N -r1.3 -r1.4
--- openacs-4/packages/assessment/tcl/as-action-proc.tcl	18 Apr 2018 09:09:13 -0000	1.3
+++ openacs-4/packages/assessment/tcl/as-action-proc.tcl	3 May 2018 20:27:42 -0000	1.4
@@ -17,7 +17,7 @@
 } {
     db_foreach get_check_params { select * from as_param_map where inter_item_check_id = :inter_item_check_id } {
     set parameter_name [db_1row select_name "select varname from as_action_params where parameter_id = :parameter_id"]
-    if {![exists_and_not_null value]} {
+    if {![info exists value] || $value eq ""} {
         set $varname [db_string get_item_choice {select idc.choice_id from as_item_data_choices idc,as_item_data id where id.as_item_id=$item_id and id.item_data_id=idc.item_data_id and id.session_id=:session_id}]
 
     }else {