Revert "Don't allow recomputing a node that *must* be materialized in the backwards pass (#89171)" (#89770)
This reverts commit e36d68af8885f27d8c0b4727ab078bf53e55e7a0.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/89770
Approved by: https://github.com/anijain2305
