Prevent add invitees to course group - Refs #8091

main/group/member_settings.php

@@ -136,6 +136,8 @@ $userGroup = new UserGroup();
 if (!empty($complete_user_list)) {
     usort($complete_user_list, 'sort_users');
     foreach ($complete_user_list as $index => $user) {
+        //prevent invitee users add to groups - see #8091
+        if ($user['status'] != 20) {
             $officialCode = !empty($user['official_code']) ? ' - '.$user['official_code'] : null;
 
             $groups = $userGroup->getUserGroupListByUser($user['user_id']);
@@ -155,6 +157,7 @@ if (!empty($complete_user_list)) {
             $possible_users[$user['user_id']] = $name.$groupNameListToString;
         }
     }
+}
 
 // Group members
 $group_member_list = GroupManager::get_subscribed_users($current_group['id']);