fix regression which creates a new fake tensor (#111864)
Summary:
Fixes regression identified here: https://github.com/pytorch/pytorch/pull/111565/files/ccd6b373b5fba81b6141a6b93b2ffb6595dd49ae#r1369334484
Now that `get_fake_value` will identify aliases, we should not try to wrap the fake value again.
X-link: https://github.com/pytorch/pytorch/pull/111864
Approved by: https://github.com/eellison
Reviewed By: izaitsevfb
Differential Revision: D50627345
fbshipit-source-id: a02ae99d1cf523db38f25675a8baa7a853792850
