Greetings,
I've been using Akka in my Java based backend and faced some issue related 
to ActorSelection API if it is used from ActorContext (from inside Actor).
For some reason I cannot find existing Actors via Identify message for 
specific paths.

Imagine, that I have such Actor hierarchy:
USER -> Parent Actor -> Child Actor
USER -> WorkerActor

And let's assume that I would like to locate Child Actor via actor 
selection and use wildcard for the purpose.
So, I'm building such path:
/user/*/ChildActor

For some reason -> if this path is used for lookup via global Akka system 
context -> ActorIdentity provides me ActorRef
But, if I will perform the same lookup but from inside WorkerActor via 
ActorContext -> Identify ActorRef is null.

For me it seems like a bug and inconsistent behavior.
I've provided code with different scenarios and the correct one.

JUnit code with the issue <https://gist.github.com/Anatolik/9619710>

Another one point - for some reason if I call actorSelection.tell from 
inside Worker Actor -> messages got delivered to the target ChildActor. 
But, I see some errors in dead letters office:
15:08:21.916 INFO [default-akka.actor.default-dispatcher-3] 
a.a.EmptyLocalActorRef - Message [java.lang.String] from 
TestActor[akka://default/user/$$a] to 
Actor[akka://default/user/$$a/ForwardingActor] was not delivered. [1] dead 
letters encountered. This logging can be turned off or adjusted with 
configuration settings 'akka.log-dead-letters' and 
'akka.log-dead-letters-during-shutdown'.

Any ideas?

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