akka/akka — pull request #1981 by bantonsson (2014-02-03 11:03:30+00:00)
Title: =act #3857 Ensure that only relevant test messages go to dead letters

* Since there was no sender for the `Create` message in the test, the
created `ActorRef` was also sent to dead letters, creating a race
where the test could start to subscribe _too early_ and receive the
`ActorRef` instead of the expected string.