Indexing document with same id within 60 seconds of delete causes VersionConflictEngineException

ElasticSearchGcDeletes.java

import org.elasticsearch.client.Client;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.node.Node;


import static org.elasticsearch.client.Requests.*;
import static org.elasticsearch.index.VersionType.*;
import static org.elasticsearch.node.NodeBuilder.*;

public class ElasticSearchGcDeletes {
    private static final String INDEX = "foo";
    private static final String TYPE = "bar";
    private static final String ID = "12345";
    private static final String SOURCE = "{\"key\": \"value\"}";

    public static void main(String[] args) throws Exception {
        System.out.println("Create a local node with index.gc_deletes set to zero seconds");
        Settings settings = ImmutableSettings.settingsBuilder().put("index.gc_deletes", "0s").build();
        Node node = nodeBuilder().settings(settings).local(true).node().start();
        Client client = node.client();

        System.out.println("Indexing a document with external versioning and a version of 2");
        client.index(indexRequest(INDEX).type(TYPE).id(ID).versionType(EXTERNAL).version(2).source(SOURCE)).actionGet();

        System.out.println("Deleting the document");
        client.delete(deleteRequest(INDEX).type(TYPE).id(ID)).actionGet();

        //System.out.println("Sleeping for one second");
        //Thread.sleep(1000);

        System.out.println("Indexing a document with external versioning and a version of 1");
        client.index(indexRequest(INDEX).type(TYPE).id(ID).versionType(EXTERNAL).version(1).source(SOURCE)).actionGet();
    }
}