--- loncom/interface/lonparmset.pm	2017/12/18 23:13:53	1.584
+++ loncom/interface/lonparmset.pm	2018/09/03 16:43:47	1.585
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set parameters for assessments
 #
-# $Id: lonparmset.pm,v 1.584 2017/12/18 23:13:53 raeburn Exp $
+# $Id: lonparmset.pm,v 1.585 2018/09/03 16:43:47 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2321,7 +2321,7 @@ sub usermenu {
     if (($pssymb) || &Apache::lonnet::allowed('mdg',$env{'request.course.id'})) {
         %grouphash = &Apache::longroup::coursegroups();
     } elsif ($env{'request.course.groups'} ne '') {
-        map { $grouphash{$_} = 1; } split(/,/,$env{'request.course.groups'});
+        map { $grouphash{$_} = 1; } split(/:/,$env{'request.course.groups'});
     }
 
     my $g_s_header='';
@@ -2665,7 +2665,7 @@ sub groupmenu {
     if (&Apache::lonnet::allowed('mdg',$env{'request.course.id'})) {
         %grouphash = &Apache::longroup::coursegroups();
     } elsif ($env{'request.course.groups'} ne '') {
-         map { $grouphash{$_} = 1; } split(/,/,$env{'request.course.groups'});
+         map { $grouphash{$_} = 1; } split(/:/,$env{'request.course.groups'});
     }
     return '' if (!%grouphash);
 
@@ -2874,7 +2874,7 @@ sub assessparms {
     if ($cgroup ne '') {
         unless (&Apache::lonnet::allowed('mdg',$env{'request.course.id'})) {
             if (($env{'request.course.groups'} eq '') || 
-                (!grep(/^\Q$cgroup\E$/,split(/,/,$env{'request.course.groups'})))) {
+                (!grep(/^\Q$cgroup\E$/,split(/:/,$env{'request.course.groups'})))) {
                 $noeditgrp = 1;
             }
         }
@@ -4282,7 +4282,7 @@ sub listdata {
         if (&Apache::lonnet::allowed('mdg',$env{'request.course.id'})) {
             %grouphash = &Apache::longroup::coursegroups();
         } elsif ($env{'request.course.groups'} ne '') {
-            map { $grouphash{$_} = 1; } split(/,/,$env{'request.course.groups'});
+            map { $grouphash{$_} = 1; } split(/:/,$env{'request.course.groups'});
         }
     }