Is it a problem to have a starting sub component wich declare a new type with same key of the father ?

[labordep]

See the following tests :

MolInheritanceTests>>testServicesWithoutChild

[labordep]

Yes, because when two components with same name and same services interface are started the system cannot determine wich component is called between them (see #22).
The solution is to prohibit same component contract structure instanciation with the same key.