No Source Available for Async Tests

Tested with Visual Studio 2012 and 2013 Preview, latest test adapter from gallery (0.96.0.4).

When you double-click on a normal Unit Test in Test Explorer from Visual Studio, you are taken to the source definition of that test. When you double-click an async test, nothing happens.

Sample Code:

    [TestFixture]
    public class SampleFixture
    {
        [Test]
        public async Task AsyncTest()
        {
            Assert.Fail();
        }

        [Test]
        public void SyncTest()
        {
            Assert.Fail();
        }
    }

Instructions to reproduce:

* Start a new Class Library (add nunit via nuget)
* Add the above code, and Build
* Double-click both of the unit tests from Test Explorer. SyncTest will take you to the code; AsyncTest won't.