@Override
    public void cloneFields(Cloner cloner, Object original) {
        super.cloneFields(cloner, original);

        // A change in behavior... I think previously LightNode was probably
        // not really cloneable... or at least its lightControl would be pointing
        // to the wrong control. -pspeed
        this.lightControl = cloner.clone(lightControl);
    }
Called internally by com.jme3.util.clone.Cloner.  Do not call directly.
jme3-core/src/main/java/com/jme3/scene/LightNode.java