pytorch

2d5b19f6 - Update full backward hook doc with not-same-object note (#63245)

Update full backward hook doc with not-same-object note (#63245) Summary: Fixes https://github.com/pytorch/pytorch/issues/61446 Pull Request resolved: https://github.com/pytorch/pytorch/pull/63245 Reviewed By: ejguan Differential Revision: D30352656 Pulled By: albanD fbshipit-source-id: 7000ecb54a80f2da968ec7600b98574b608578ae