--- loncom/interface/lonuserutils.pm	2023/01/22 17:21:54	1.184.4.10.2.2
+++ loncom/interface/lonuserutils.pm	2023/09/02 22:27:50	1.184.4.10.2.3
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Utility functions for managing LON-CAPA user accounts
 #
-# $Id: lonuserutils.pm,v 1.184.4.10.2.2 2023/01/22 17:21:54 raeburn Exp $
+# $Id: lonuserutils.pm,v 1.184.4.10.2.3 2023/09/02 22:27:50 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -510,7 +510,7 @@ END
 ";
     } elsif ($mode eq 'modifycourse') {
         $auth_checks .= "
-    if (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '') {
+    if ((current.argfield !== null) && (current.argfield !== undefined) && (current.argfield !== '') && (vf.elements[current.argfield].value == null || vf.elements[current.argfield].value == '')) {
 ";
     }
     if ( ($mode eq 'createcourse') || ($mode eq 'modifycourse') ) {
@@ -6529,7 +6529,7 @@ sub selfenrollment_administration {
         }
     }
     if ($settings{'internal.selfenrollmgrdc'} ne '') {
-        my @in_domain = split(/,/,$settings{'internal.selfenrollmgrdc'});
+        @in_domain = split(/,/,$settings{'internal.selfenrollmgrdc'});
         my @diffs = &Apache::loncommon::compare_arrays(\@in_domain,$possconfigs);
         unless (@diffs) {
             return (\@in_course,\@in_domain);