Fix group list BT#16866

plugin/bbb/listing.php

@@ -204,16 +204,15 @@ if ($bbb->isGlobalConference() === false &&
         $meetingsInGroup = $bbb->getAllMeetingsInCourse(api_get_course_int_id(), api_get_session_id(), 1);
         $meetingsGroup = array_column($meetingsInGroup, 'status', 'group_id');
 
-        foreach ($groups as &$groupData) {
+        $groupList[0] = get_lang('Select');
+        foreach ($groups as $groupData) {
             $itemGroupId = $groupData['iid'];
             if (isset($meetingsGroup[$itemGroupId]) && $meetingsGroup[$itemGroupId] == 1) {
                 $groupData['name'] .= ' ('.get_lang('Active').')';
             }
+            $groupList[$itemGroupId] = $groupData['name'];
         }
 
-        $groupList[0] = get_lang('Select');
-        $groupList = array_merge($groupList, array_column($groups, 'name', 'iid'));
-
         $form->addSelect('group_id', get_lang('Groups'), $groupList, ['id' => 'group_select']);
         $form->setDefaults(['group_id' => $groupId]);
         $formToString = $form->returnForm();