possible confusion between req.data and cnx.data?

description

web.request._CubicWebRequestBase has a data attribute, which is not the same as the session .data attribute. Are there cases where we might access self._cw.data not knowing whether we'll get back session or request data?

todo by<not specified>
activity of#73c6cf04fd87 [shared data] remove get/set_shared_data api