@Override
    public LocalStep<S, E> clone() {
        final LocalStep<S, E> clone = (LocalStep<S, E>) super.clone();
        clone.localTraversal = this.localTraversal.clone();
        clone.first = true;
        return clone;
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/branch/LocalStep.java