Pull request

Created originally on Bitbucket by sborho (Steve Borho)

Was already merged in Bitbucket before import, marked as merged by the import user

Source changeset not longer availableat the time of import. Commit listwill look empty

Yet another API change in Mercurial, this time on the stable branch.

You may want to make the new try: except: clause more selective of the exceptions it traps, I was in a hurry.