Reproduction for copy attribute issue Saxon-XForms

simplified-reproduction.xml

<xf:xform xmlns:rest="http://exquery.org/ns/restxq" xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xf="http://www.w3.org/2002/xforms" xmlns:demo="urn:saxon-xforms:demo">
    <!-- 
    
    Have to use *: in XPaths. For some reason namespace declaration is not retained by betterForms
    
    Have to use namespace. For some reason betterForms treats no namespace as XHTML namespace.
    
    -->
    <xf:model id="m-recipes">
        <xf:instance id="all">
            <demo:recipes>
                <demo:recipe>
                    <demo:id>1</demo:id>
                    <demo:title>Orange and ginger chicken</demo:title>
                    <demo:ingredients>
                        <demo:ingredient>chicken</demo:ingredient>
                        <demo:ingredient>ginger</demo:ingredient>
                        <demo:ingredient>orange</demo:ingredient>
                    </demo:ingredients>
                </demo:recipe>
                <demo:recipe>
                    <demo:id>2</demo:id>
                    <demo:title>Sausage and mash</demo:title>
                    <demo:ingredients>
                        <demo:ingredient>sausages</demo:ingredient>
                        <demo:ingredient>potatoes</demo:ingredient>
                        <demo:ingredient>gravy</demo:ingredient>
                    </demo:ingredients>
                </demo:recipe>
                <demo:recipe>
                    <demo:id>3</demo:id>
                    <demo:title>Broccoli pasta</demo:title>
                    <demo:ingredients>
                        <demo:ingredient>broccoli</demo:ingredient>
                        <demo:ingredient>pasta</demo:ingredient>
                        <demo:ingredient>pesto</demo:ingredient>
                        <demo:ingredient>lemon</demo:ingredient>
                    </demo:ingredients>
                </demo:recipe>
            </demo:recipes>
        </xf:instance>
        
        <!-- empty <ingredient> to insert -->
        <xf:instance id="i-new-ingredient">
            <demo:ingredient/>
        </xf:instance>
        <xf:instance id="i-optional">
            <demo:ingredient optional="true" />
        </xf:instance>
        
        
    </xf:model>
    
    
    <div id="content">
        <h2>Recipe list</h2>
        
        <xf:repeat id="recipe-repeat" nodeset="instance('all')/demo:recipe" class="repeat" startindex="2">
            <xf:output ref="demo:title"/>
            <xf:repeat id="ingredient-repeat" nodeset="demo:ingredients/demo:ingredient" class="repeat">
                <xf:output ref="text()"/>
            </xf:repeat>
        </xf:repeat>  
        
        <xf:trigger>
            <xf:label>Rebuild</xf:label>
            <xf:action ev:event="DOMActivate">
                <xf:rebuild model="m-recipes"/>
            </xf:action>
        </xf:trigger>
        
        <!-- 
                            
                            EDIT RECIPE 
                        
                        -->
        
        <h2>Edit recipe</h2>
        
        <xf:group ref="instance('all')/demo:recipe[index('recipe-repeat')]" appearance="full" class="edit">
            <xf:input ref="demo:title">
                <xf:label>Recipe Name:</xf:label>
            </xf:input>
            <xf:repeat id="edit-ingredient-repeat" nodeset="demo:ingredients/demo:ingredient">
                <xf:input ref="." id="edit-ingredient-repeat-input">
                    <xf:label>Ingredient:</xf:label>
                </xf:input>
            </xf:repeat>
            
            
            <!-- http://wiki.orbeon.com/forms/how-to/logic/repeat-insert-position -->
            <xf:trigger>
                <xf:label>Add ingredient after selected item</xf:label>
                <xf:action ev:event="DOMActivate">
                    <xf:insert context="." nodeset="demo:ingredients/demo:ingredient" at="index('edit-ingredient-repeat')" position="after" origin="instance('i-new-ingredient')"/>
                    <xf:setfocus control="edit-ingredient-repeat-input"/>
                </xf:action>
            </xf:trigger>
            
            <xf:trigger>
                <xf:label>Make ingredient optional</xf:label>
                <xf:action ev:event="DOMActivate">
                    <xf:insert context="."  nodeset="demo:ingredients/demo:ingredient" origin="instance('i-optional')/@optional"/>
                    <xf:setfocus control="edit-ingredient-repeat-input"/>
                </xf:action>
            </xf:trigger>
            
            <xf:trigger>
                <xf:label>Delete selected ingredient</xf:label>
                <xf:action ev:event="DOMActivate">
                    <xf:delete context="." nodeset="demo:ingredients/demo:ingredient" at="index('edit-ingredient-repeat')"/>
                    <xf:setindex repeat="edit-ingredient-repeat" index="index('edit-ingredient-repeat') - 1" if="index('edit-ingredient-repeat') != 1"/>
                    <xf:insert context="./demo:ingredients" if="not(demo:ingredient)" nodeset="demo:ingredient" origin="instance('i-new-ingredient')"/>
                    
                    <xf:setfocus control="edit-ingredient-repeat-input"/>
                </xf:action>
            </xf:trigger>
            
            
            
            <xf:trigger>
                <xf:label>Move selected ingredient Up</xf:label>
                <!-- xf:action groups a sequence of actions -->
                <xf:action ev:event="DOMActivate" if="index('edit-ingredient-repeat') != 1">
                    <!-- insert changes "focus" index to the newly inserted node -->
                    <xf:insert context="." nodeset="demo:ingredients/demo:ingredient" at="index('edit-ingredient-repeat') - 1" position="before" origin="demo:ingredients/demo:ingredient[index('edit-ingredient-repeat')]"/>
                    <!-- original node is now at index() + 2 -->
                    <xf:delete context="." nodeset="demo:ingredients/demo:ingredient" at="index('edit-ingredient-repeat') + 2"/>
                    <xf:setfocus control="edit-ingredient-repeat-input"/>
                </xf:action>
            </xf:trigger>
            
            <xf:trigger>
                <xf:label>Move selected ingredient Down</xf:label>
                <!-- xf:action groups a sequence of actions 
                     
                     tried position() instead of index('edit-ingredient-repeat') but didn't work
                     possibly because focus was on a different row from where 'Down' was clicked
                     -->
                <xf:action ev:event="DOMActivate" if="index('edit-ingredient-repeat') != count(demo:ingredients/demo:ingredient)">
                    <!-- insert changes "focus" index to the newly inserted node -->
                    <xf:insert context="." nodeset="demo:ingredients/demo:ingredient" at="index('edit-ingredient-repeat') + 1" position="after" origin="demo:ingredients/demo:ingredient[index('edit-ingredient-repeat')]"/>
                    <!-- original node is now at index() - 2 -->
                    <xf:delete context="." nodeset="demo:ingredients/demo:ingredient" at="index('edit-ingredient-repeat') - 2"/>
                    <!-- copy of original node is now at index() - 1 -->
                    <xf:setindex repeat="edit-ingredient-repeat" index="index('edit-ingredient-repeat') - 1"/>
                    <xf:setfocus control="edit-ingredient-repeat-input"/>
                </xf:action>
            </xf:trigger>
        </xf:group>
        
        
    </div>
    
</xf:xform>