@Override
    public void reset() {
        super.reset();
        this.tail.clear();
        this.tailBulk = 0L;
    }
@author Matt Frantz (http://github.com/mhfrantz)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/filter/TailGlobalStep.java