pytorch

c99277e1 - handle the case in acc_ops.sum when dim == 0, differentiating it from the case when dim is None (#64869)

handle the case in acc_ops.sum when dim == 0, differentiating it from the case when dim is None (#64869) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/64869 handle the case in acc_ops.sum when dim == 0, differentiating it from the case when dim is None Reviewed By: 842974287 Differential Revision: D30872739 fbshipit-source-id: 2755d3230804a16ef1c9289f804138c6dd7766b3