Update lib/galaxy/authnz/custos_authnz.py

        custos_authnz_token = self._get_custos_authnz_token(trans.sa_session, user_id, self.config.provider)

        if custos_authnz_token is None:

            user = trans.user

            existing_user = trans.sa_session.query(User).filter(func.lower(User.email) == email.lower()).first()

            existing_user = trans.sa_session.query(User).where(func.lower(User.email) == email.lower()).first()

            if not user:

                if existing_user:

                    if trans.app.config.fixed_delegated_auth: