title: Is there a way to use bitbucket to fork a subversion project?
body: <p>I have commit rights to a sourceforge project that is owned by the other, primary developer. I'd like to manage my own changes using mercurial, and in fact I'd like to publish them as a fork of this project on bitbucket. However, I want to be able to easily push changes back to the main subversion project; this won't be a hostile fork, just a different path.</p>
  
  <p>Does bitbucket support the svn extensions to Mercurial? If so, how can I use them to fork a sourceforge project?</p>