Plone: Add ``object_provides`` criteria to query string for use in collections. Put code in ``registry.xml`` and create a .tar.gz, then upload it via portal_setup and make sure to untick "Purge existing settings".

registry.xml

<registry xmlns:i18n="http://xml.zope.org/namespaces/i18n">
    <!-- Add ``object_provides`` criteria to query string for use in collections.
         Put code in ``registry.xml`` and create a .tar.gz, then upload it via
         portal_setup and make sure to untick "Purge existing settings". -->
    <records interface="plone.app.querystring.interfaces.IQueryField"
             prefix="plone.app.querystring.field.object_provides">
        <value key="title">object_provides</value>
        <value key="description">Search for provided interfaces</value>
        <value key="enabled">True</value>
        <value key="sortable">True</value>
        <value key="operations">
            <element>plone.app.querystring.operation.list.contains</element>
        </value>
    </records>

</registry>