[oozie] Graph breaks for external workflows when there is more than one kill node

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<workflow-app name="SolrFileIndexer" xmlns="uri:oozie:workflow:0.5">
    <start to="java-212a"/>
    <kill name="IndexFailed">
        <message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
    </kill>
    <kill name="CleanupFailed">
        <message>FS Delete failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
    </kill>
    <action name="java-212a">
        <java>
            <job-tracker>${jobTracker}</job-tracker>
            <name-node>${nameNode}</name-node>
            <configuration>
                <property>
                    <name>collectionName</name>
                    <value>test</value>
                </property>
            </configuration>
            <main-class&gt;org.apache.solr.hadoop.MapReduceIndexerTool</main-class&gt;
            <arg>--morphline-file</arg>
            <arg>morphline.conf</arg>
            <arg>--output-dir</arg>
            <arg>${nameNode}${outputDir}${username}</arg>
            <arg>--log4j</arg>
            <arg>log4j.properties</arg>
            <arg>--verbose</arg>
            <arg>--go-live</arg>
            <arg>--zk-host</arg>
            <arg>${zkHost}</arg>
            <arg>--collection</arg>
            <arg>${collectionName}</arg>
            <arg>${nameNode}${filePath}</arg>
            <file>morphline.conf#morphline.conf</file>
            <file>/user/hue/log4j.properties#log4j.properties</file>
        </java>
        <ok to="clean-up"/>
        <error to="IndexFailed"/>
    </action>
    <action name="clean-up">
      <fs>
        <delete path="${workspacePath}"/>
      </fs>
      <ok to="End"/>
      <error to="CleanupFailed"/>
    </action>
    <end name="End"/>
</workflow-app>