[oozie] Import workflow with ssh action ignores <args> tag

export HUE_CONF_DIR=/var/run/cloudera-scm-agent/process/73-hue-HUE_SERVER
/opt/cloudera/parcels/CDH/lib/hue/build/env/bin/hue shell_plus
from django.contrib.auth.models import User
from liboozie.types import WorkflowList, Workflow as OozieWorkflow, Coordinator as OozieCoordinator, Bundle as OozieBundle, CoordinatorList, WorkflowAction, BundleList
from oozie.models import Workflow, Node, Kill, Link, Job, Coordinator, History, find_parameters, NODE_TYPES, Bundle
from oozie.importlib.workflows import import_workflow
# type a user that exists
workflow = Workflow.objects.new_workflow(User.objects.get(username='user that exists'))
workflow.save()
wf = """
<workflow-app name="Ssh" xmlns="uri:oozie:workflow:0.1">
    <start to="Ssh"/>
    <action name="Ssh">
        <ssh xmlns="uri:oozie:ssh-action:0.1">
            <host>${host}@${user}</host>
            <command>ls</command>
              <args>-l</args>
              <capture-output/>
        </ssh>
        <ok to="end"/>
        <error to="kill"/>
    </action>
    <kill name="kill">
        <message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
    </kill>
    <end name="end"/>
</workflow-app>
"""
import_workflow(workflow, wf)
workflow.save()
node = Node.objects.get(workflow=workflow, node_type='ssh').get_full_node()
node.host
node.command
# expected node params should at least show some 'args' eg [{"type": "arg", "value": "-l"}]
node.params


workflow.delete(skip_trash=True)