If component is declared with 1.3 NS and ds.factory.enabled = true, validation error occors

For example the following component xml leads to a validation error:

"Configuration of component factory instances through config admin factory pids supported only through the 1.2 namespace"

<components xmlns:scr="http://www.osgi.org/xmlns/scr/v1.3.0">
<scr:component name="org.apache.sling.sample.slingshot.impl.SetupService" activate="activate" deactivate="deactivate">
<implementation class="org.apache.sling.sample.slingshot.impl.SetupService"/>
<property name="service.vendor" value="The Apache Software Foundation"/>
<property name="service.pid" value="org.apache.sling.sample.slingshot.impl.SetupService"/>
</scr:component>
</components>