pytorch

a9a64232 - Revert "[export] Copy gm before calling PassManager" for test or build failures (#108441)

Revert "[export] Copy gm before calling PassManager" for test or build failures (#108441) Test Plan: CI Differential Revision: D48916322 Pull Request resolved: https://github.com/pytorch/pytorch/pull/108441 Approved by: https://github.com/cccclai