Tasks missing from Page Template

[Vincenzo Caruso]

When adding Task to a Template, like this:

markup:

<ac:task-list>

    <ac:task>

        <ac:task-id>1</ac:task-id>

        <ac:task-status>incomplete</ac:task-status>

        <ac:task-body>

            <p>

                <ac:link>

                    <ri:user ri:userkey="8a94c1bb46a551d90146a556fe860491" />

                    <ac:plain-text-link-body>

                        <![CDATA[Foo]]>

                    </ac:plain-text-link-body>

                </ac:link> please fill in status update</p>

        </ac:task-body>

    </ac:task>

I can see the task showing up in the Preview:

But then when I save the template, the task disapper. If I go back and edit the template again, the task isn't there any more.