Index: openacs-4/packages/survey/www/admin/responses-export.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/survey/www/admin/responses-export.tcl,v
diff -u -r1.13.4.3 -r1.13.4.4
--- openacs-4/packages/survey/www/admin/responses-export.tcl	9 Feb 2020 16:10:31 -0000	1.13.4.3
+++ openacs-4/packages/survey/www/admin/responses-export.tcl	22 Oct 2023 16:30:01 -0000	1.13.4.4
@@ -10,10 +10,10 @@
 } {
 
   survey_id:naturalnum,notnull
-  {unique_users_p:boolean f}
+  {unique_users_p:boolean,notnull f}
   on_what_id:naturalnum,optional
-  {start:naturalnum 1}
-  {end:naturalnum 10000}
+  {start:naturalnum,notnull 1}
+  {end:naturalnum,notnull 10000}
 }
 set csv_export ""
 set package_id [ad_conn package_id]