pytorch

2b86cc44 - Fix coalesce, clone, to_dense for sparse scalars.

Fix coalesce, clone, to_dense for sparse scalars. Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/17379 Differential Revision: D14183641 Pulled By: gchanan fbshipit-source-id: dbd071b648695d51502ed34ab204a1aee7e6259b