public void FromXmlWrongVersion ()
{
RegistryPermission ep = new RegistryPermission (PermissionState.None);
SecurityElement se = ep.ToXml ();
// can't modify - so we create our own
SecurityElement se2 = new SecurityElement (se.Tag, se.Text);
se2.AddAttribute ("class", se.Attribute ("class"));
se2.AddAttribute ("version", "2");
ep.FromXml (se2);
}