Comment 5 for bug 768352

It looks like only bug supervisors (or the project owner) can do that.

    def canTransitionToStatus(new_status, user):
        """Return True if the user is allowed to change the status to
        `new_status`.

        :new_status: new status from `BugTaskStatus`
        :user: the user requesting the change

        Some status transitions, e.g. Triaged, require that the user
        be a bug supervisor or the owner of the project.
        """

I'm not sure whether it's the docs that need to be fixed or the code,
though.