• Operating System version: Ubuntu 20.04
• Firebase SDK version: 4.5.3
• Firebase Product: auth
• Python version: 3.7.10
• Pip version: 21.1.1

Steps to reproduce:

1. Create a project with google 0Auth
2. Login with Google 0Auth
3. Make sure the access or refresh token is valid.
4. Go to user GA settings: Manage your Google Account -> Security -> Third-party apps with account access
5. Remove your project from Third-party apps
6. Check access and refresh tokens from step №2

Observed behavior:
All tokens are valid

Expected behavior:
Access and refresh token revoked