ipojo @Component with propagation set to true doesn't propagate properties

I use config admin to instantiate my component and I want its property to be deployed with its registered service as a service property.
According to the documentation, I have to set the flag propagation to true to do so. So my code is like :

@Component(name="component", propagation=true)
@Provides
public class MyComponent implements MyService
{
@Property(name="p")
private String p;

}

Then I look to my instance details and I don't see the property attached to the service, it's just attached to the component instance :
instance name="component.16d0dcc1-ae65-49b9-a7fe-17f6723997db" state="valid" bundle="8" component.type="component"
handler name="org.apache.felix.ipojo:properties" state="valid"
property name="p" value="1"
handler name="org.apache.felix.ipojo:provides" state="valid"
provides specifications="[test.ipojo.MyService]" state="registered" service.id="50"
property name="service.pid" value="component.16d0dcc1-ae65-49b9-a7fe-17f6723997db"
property name="service.factoryPid" value="component"
property name="factory.name" value="component"
property name="instance.name" value="component.16d0dcc1-ae65-49b9-a7fe-17f6723997db"
handler name="org.apache.felix.ipojo:architecture" state="valid"

Then I tried to add the @ServiceProperty on my property field and I also removed the propgation flag. So my code is now like :

@Component(name="component")
@Provides
public class MyComponent implements MyService
{
@Property(name="p")
@ServiceProperty
private String p;

}

and if I look to my instance details I can see the property attached to both my component and my service :
instance name="component.c4ee23a1-14c3-447c-93f8-78caf65a8304" state="valid" bundle="8" component.type="component"
handler name="org.apache.felix.ipojo:properties" state="valid"
property name="p" value="1"
handler name="org.apache.felix.ipojo:provides" state="valid"
provides specifications="[test.ipojo.MyService]" state="registered" service.id="52"
property name="service.pid" value="component.c4ee23a1-14c3-447c-93f8-78caf65a8304"
property name="service.factoryPid" value="component"
property name="p" value="1"
property name="factory.name" value="component"
property name="instance.name" value="component.c4ee23a1-14c3-447c-93f8-78caf65a8304"
handler name="org.apache.felix.ipojo:architecture" state="valid"

Is it a but with the propagation flag or is the documentation wrong?