Copy a section to all the other sections in XForms

gistfile1.xml

<xhtml:html xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:fr="http://orbeon.org/oxf/xml/form-runner" xmlns:xforms="http://www.w3.org/2002/xforms" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xxforms="http://orbeon.org/oxf/xml/xforms">
    <xhtml:head>
        <xforms:model>
            <xforms:instance>
                <instance>
                    <rep-section>
                        <first-name/>
                        <last-name/>
                    </rep-section>
                    <rep-section>
                        <first-name/>
                        <last-name/>
                    </rep-section>
                    <rep-section>
                        <first-name/>
                        <last-name/>
                    </rep-section>
                </instance>
            </xforms:instance>
        </xforms:model>
    </xhtml:head>
    <xhtml:body>
        <xforms:repeat ref="rep-section">
            <xhtml:div>
                <xforms:input ref="first-name">
                    <xforms:label>First name: </xforms:label>
                </xforms:input>
                <xforms:input ref="last-name">
                    <xforms:label>Last name: </xforms:label>
                </xforms:input>
                <xforms:trigger>
                    <xforms:label>Copy to other section</xforms:label>
                    <xforms:action ev:event="DOMActivate">
                        <xxforms:variable name="source" select="."/>
                        <xforms:action ev:event="DOMActivate" xxforms:iterate="../* except .">
                            <xforms:delete ref="*"/>
                            <xforms:insert context="." origin="$source/*"/>
                        </xforms:action>
                    </xforms:action>
                </xforms:trigger>
            </xhtml:div>
        </xforms:repeat>
    </xhtml:body>
</xhtml:html>