Uploaded the backup DB of v8rc2 and pulled the updated v8.0.1.
Got the above error when tried to login app so private_hash and filename_download are still empty in DB.

Hotfix incoming.. 馃う鈥嶁檪
I'll have to override this release as this migration will keep causing trouble if not.. Sorry 'bout that!
I have 500 error on login : /
Yes, as @gianniskarmas pointed out above
Most helpful comment
https://github.com/directus/directus/releases/tag/v8.0.2