@Override
    protected Object objectClone(Object object) {
        if (object instanceof Hit) {
            return ((Hit)object).clone();
        }
        return super.objectClone(object);
    }
Extends com.yahoo.processing.request.CloneHelper with fastpath for
 - com.yahoo.search.result.Hit
container-search/src/main/java/com/yahoo/search/query/properties/CloneHelper.java