Ensure legacy sparse constructor/new doesn't interpret python data as tensor data. (#31490)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/31490
When this happens, a dense tensor is constructed from a sparse constructor.
Fixes: https://github.com/pytorch/pytorch/issues/16154
Test Plan: Imported from OSS
Reviewed By: cpuhrsch, mrshenli
Differential Revision: D19196498
Pulled By: gchanan
fbshipit-source-id: 57a6324833e35f3e62318587ac74267077675b93
