[BUG] Invalid refresh token prevents re-authorization with Canvas #483
Description
Describe the bug
When a professor's refresh token is invalid, it prevents their access token from being deleted on our end. This should be changed to allow proper re-authorization.
To Reproduce
Cannot be reproduced regularly on a local environment.
Expected behavior
Professors should be able to delete their access tokens, invalid refresh tokens should have their access token deleted automatically.
Current behavior
Access tokens cannot be deleted if the refresh token is invalid.