pytorch

0a002f87 - Actually clean on clean workspace, including hidden files (#71018)

Actually clean on clean workspace, including hidden files (#71018) Summary: The workspace should be totally empty before checking out PyTorch; this is especially important with non-ephemeral runners. Pull Request resolved: https://github.com/pytorch/pytorch/pull/71018 Reviewed By: robieta Differential Revision: D33482985 Pulled By: suo fbshipit-source-id: cafa123d2b893bfbdad62295586b5b79f1542b3a