* 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](https://support.google.com/cloud/answer/6158849?hl=en) 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