I have a view like :

<cms:view name="main">
    <cms:attribute-ref name="title"/>
    <cms:attribute-ref name="code"/>
    <cms:attribute-ref name="linkedContent">
        <cms:attribute-ref name="title"/>
        <cms:attribute-ref name="code"/>
    </cms:attribute-ref>
</cms:view>

The linkedContent is not display.

Technical explanation
While the view is merged, title and code are not compared with the complete path from the root view. So they are excluded from the view.

Take care of the linkedContent can have the same content type as the root view. We can have several linked content attributes with the same content type.