Comment 2 for bug 818318

The issue seems to be r47, directory "src":

------------------------------------------------------------
revno: 47
fixes bug(s): https://launchpad.net/bugs/809359 https://launchpad.net/bugs/808619
committer: Alex Regueiro <email address hidden>
branch nick: 0.4
timestamp: Wed 2011-07-13 00:49:44 +0100
message:
  Restructured working tree so that samples/ and tests/ are root dirs.
  Fixed bug where user information (real name/user name/host name) was sometimes incomplete when user joined channel.
  ModesChanged and TopicChanged events on IrcChannel now specify IrcUser that made change.
added:
  tests/
  tests/IrcDotNet-Tests.sln
  tests/IrcDotNet/App.xaml
  tests/IrcDotNet/App.xaml.cs
  tests/IrcDotNet/CompleteIrcClientOrderedTest.cs
  tests/IrcDotNet/IrcDotNet-Silverlight.Tests.csproj
  tests/IrcDotNet/OrderedTest.cs
  tests/IrcDotNet/Properties/OutOfBrowserSettings.xml
renamed:
  src/IrcDotNet.Tests/ => tests/IrcDotNet/
  src/IrcDotNet.Tests/README.md => tests/README.md
  src/IrcDotNet.vsmdi => tests/IrcDotNet.vsmdi
  src/Local.testsettings => tests/Local.testsettings
  src/Samples/ => samples/
  src/TraceAndTestImpact.testsettings => tests/TraceAndTestImpact.testsettings
modified:
  src/IrcDotNet.sln
  src/IrcDotNet/IrcChannel.cs
  src/IrcDotNet/IrcClient.cs
  src/IrcDotNet/IrcClientMessageProcessing.cs
  src/IrcDotNet/IrcDotNet-Silverlight.csproj
  src/IrcDotNet/IrcUtilities.cs
  tests/IrcDotNet/CompleteIrcClient.orderedtest
  tests/IrcDotNet/IrcClientTestSet.cs
  tests/IrcDotNet/IrcDotNet.Tests.csproj
  tests/IrcDotNet/Properties/AppManifest.xml
  tests/IrcDotNet/Properties/AssemblyInfo.cs
  tests/README.md
  tests/IrcDotNet.vsmdi
HPSS calls: 61 (43 vfs) SmartSSHClientMedium(bzr+ssh://<email address hidden>/)

the _revision_to_objects method doesn't generate a proper tree object for the src directory here, but it does point the root tree at it for the src/ branch.