Eaton writes in the NS that Corbyn attended a Labour Friends of Israel party during the conference accompanied by Benn. It's pretty clear what Corbyn attempted when forming the cabinet, having moderate main frontbenchers as the moderating factor of his reign - thus his right tilt would not be credited to him personally by the hard left and he will be rehabilitated in the eyes of the Labour right.
He attended the Friends of Israel party and after his speech, Michael Foster (Labour candidate for Cambourne) shouted on the top of his lungs something along the lines of "You didn't mention Israel once!1!!!11".