The documentation does not describe what output a script should give when used with bzr bisect run

Confirming, just bumped into that one. I had to read source to find out this:

                if retcode == 0:
                    done = self._set_state(None, 'yes')
                elif retcode == 125:
                    break
                else:
                    done = self._set_state(None, 'no')

So it should return 0 for yes, 125 for error (WTF??!), anything else for no.

thanks vaclav. After realizing that bisect does not bisect into merge commits, i abandoned it again though. As it stands now it is quite useless for real distributed development.