Fix comparisions for ConcreteModuleType (#32256)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32256
Previously two unrelated modules loaded from torch.jit.load
would compare equal because we only considered their data_ attributes which
are initialized blank in torch.jit.load. This changes ConcreteModuleType
to distinguish when the data_ attribute is blank vs when it is empty.
This replaces the poisoned logic.
ghstack-source-id: 96755797
Test Plan: oss
Differential Revision: D19423055
fbshipit-source-id: 79d6a50a3731c6eeb8466ba2a93702b49264bba0
