# File lib/merb/session/active_record_session.rb, line 12
    def finalize_session
      request.session.save if @_fingerprint != Marshal.dump(request.session.data).hash
      set_cookie(_session_id_key, request.session.session_id, Time.now + _session_expiry) if (@_new_cookie || request.session.needs_new_cookie)
    end