Pull / push commit numbers are wrong when using git-svn

I've just updated to SourceTree 1.01, and the incoming / outgoing commit numbers are very useful when I'm using a real Git repository. Unfortunately they seem to be bogus when using git-svn to connect to a subversion repository.

I've just pushed a series of commits to subversion using the git svn dcommit command, and am completely up-to-date with the server (using git svn rebase). However, the UI is telling me that I have 7 commits to pull and 9 to push.

Restarting SourceTree has no impact on this.