pytorch

f02cfcc8 - ban PyTorchStreamWriter from writing the same file twice (#61805)

ban PyTorchStreamWriter from writing the same file twice (#61805) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/61805 Similar in spirit to https://github.com/pytorch/pytorch/pull/61371. While writing two files with the same name is allowed by the ZIP format, most tools (including our own) handle this poorly. Previously I banned this within `PackageExporter`, but that doesn't cover other uses of the zip format like TorchScript. Given that there are no valid use cases and debugging issues caused by multiple file writes is fiendishly difficult, banning this behavior enitrely. Differential Revision: D29748968 D29748968 Test Plan: Imported from OSS Reviewed By: Lilyjjo Pulled By: suo fbshipit-source-id: 0afee1506c59c0f283ef41e4be562f9c22f21023