</registration>
            </xf:instance>

            <xf:instance id="demo-user-data">
                <registration xmlns="">
                    <first-name>John</first-name>
                    <last-name>Doe</last-name>
                </registration>
            </xf:instance>

            <!-- Just for the demo: store data into request first -->
            <xf:insert ev:event="xforms-model-construct-done"
                           if="empty(xxf:get-request-attribute('my-user-data'))"
            