pytorch

3eb94436 - [FX] Fix issue where GraphModule.delete_all_unused_submodules deletes submodules from called leaf modules (#66430)

[FX] Fix issue where GraphModule.delete_all_unused_submodules deletes submodules from called leaf modules (#66430) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/66430 On the whole, I'm not totally satisfied with this approach. I think we should be building a prefix tree data structure during initial iteration over the submodules and querying that when deleting submodules. But I think this approach works and I want to see if we can get it in before 1.10 Test Plan: Imported from OSS Reviewed By: Chillee Differential Revision: D31546137 Pulled By: jamesr66a fbshipit-source-id: f08b8409a3cf511277017ccccb916097b7c4c4fe