Docker logs immediately after `docker run -d` does not work as expected

Here is a minimal test case to demonstrate the problem:
https://gist.github.com/armon/6357180

Basically, if you start a container in a detached mode and then immediately try to tail it, it will not work as expected. However, inserting a sleep causes logs to work as expected.
