BeanProcessor are not removed when a namespace is restarted

a bundle X which register a custom NamespaceHandler. This handler add into the context a BeanProcessor with a reference on an osgi service.The Bundle Y use this namespace.

When I restart X, the bundle Y restarts, but fails with the error "The Blueprint container is being or has been destroyed"

When a namespace is restarted, the bundle Y keeps the same instance of BlueprintContainer. However, his "processors" properties is not resetted : it owns two instances of my BeanProcessor : the first one (before the restart), and the second one (after the restart). The first instance fails because the reference is not valid anymore.