Passing indices as a list to Subset instead of Tensor (#17649)
Summary:
Indices in Subset were stored as tensors earlier
passing as list in random_split to ensure integer indexing
fixes: #17466
Pull Request resolved: https://github.com/pytorch/pytorch/pull/17649
Differential Revision: D14400250
Pulled By: soumith
fbshipit-source-id: cd20a959f33773c4babf8e861ea37ec61c2713a0
