cubicweb #473927 deep copy of composites [deprecated]

I need to be able to do deep copies of composite relations :

If A related_to B (related_to composite=subject), creating a copy of an instance of A should link the new entity with copies of the related instances of B.

prioritynormal
typeenhancement
done in<not specified>
load0.000
load left0.000
closed by<not specified>