Protocol stack for fork channel is missing defined fork protocols

<channel name="ee" stack="udp">
    <fork name="foo">
        <protocol type="RSVP"/>
    </fork>
</channel>

@Resource(lookup = "java:jboss/jgroups/factory/foo")
private ChannelFactory factory;

@PostConstruct
public void init() {
    try {
        Channel channel = this.factory.createChannel("bar");
        // This assertion fails!
        assert channel.getProtocolStack().findProtocol("RSVP") != null;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}