Fix issue2550954: History display breaks .. on removed properties: Now changes to removed properties, and link/unlink events from non-existing properties or classes no longer trigger a traceback. Concerning the visibility: We have a new config-item obsolete_history_roles in the main section that defines which roles may see removed properties. By default only role Admin is allowed to see these.

def preset_new(db, cl, nodeid, newvalues):
    """ Make sure the status is set on new issues"""

    if newvalues.has_key('status') and newvalues['status']:
        return

    new = db.status.lookup('new')
    newvalues['status'] = new


def init(db):
    # fire before changes are made
    db.issue.audit('create', preset_new)