Standalone test form for #3477 "Improve performance or large forms in Form Builder"

view.xhtml

<xh:html xmlns:xh="http://www.w3.org/1999/xhtml"
      xmlns:xf="http://www.w3.org/2002/xforms"
      xmlns:xxf="http://orbeon.org/oxf/xml/xforms"
      xmlns:ev="http://www.w3.org/2001/xml-events"
      xmlns:xs="http://www.w3.org/2001/XMLSchema"
      xmlns:fr="http://orbeon.org/oxf/xml/form-runner"
      xmlns:xbl="http://www.w3.org/ns/xbl"
      xmlns:xxbl="http://orbeon.org/oxf/xml/xbl">
    <xh:head>
        <xf:model id="model">
            <xf:instance id="instance">
                <xh:html>
                    <xh:head>
                        <xf:model id="model">
                            <xf:instance id="instance">
                                <value>40</value>
                            </xf:instance>
                        </xf:model>

                        <xbl:xbl>
                            <xbl:binding id="fr-foo" element="fr|foo">
                                <xbl:implementation>
                                    <xf:model>
                                        <xf:instance>
                                            <open>false</open>
                                        </xf:instance>
                                    </xf:model>
                                </xbl:implementation>
                                <xbl:template>
                                    <xh:div>
                                        <xf:trigger id="my-trigger">
                                            <xf:label>Open/Close</xf:label>
                                            <xf:setvalue event="DOMActivate" ref="instance()" value="not(xs:boolean(.))"/>
                                        </xf:trigger>
                                        <xf:switch xxf:xforms11-switch="true" caseref="instance()" id="my-switch">
                                            <xf:case value="false()" id="my-case-closed"/>
                                            <xf:case value="true()" id="my-case-open">
                                                <xbl:content/>
                                            </xf:case>
                                        </xf:switch>
                                    </xh:div>
                                </xbl:template>
                            </xbl:binding>
                        </xbl:xbl>

                    </xh:head>
                    <xh:body>
                        <fr:foo xxf:update="full" id="foo-1">
                            <xh:span>
                                <fr:foo xxf:update="full" id="foo-1-1">
                                    <xh:span>
                                        Foo 1.1 content!
                                    </xh:span>
                                </fr:foo>
                            </xh:span>
                        </fr:foo>
                    </xh:body>
                </xh:html>
            </xf:instance>

        </xf:model>

    </xh:head>
    <xh:body>

        <xf:group id="my-group">
            <xxf:dynamic ref="." id="my-dynamic"/>
        </xf:group>

    </xh:body>
</xh:html>