When using a custom SAML provider in my application, I'm getting this error message after successfully logging into the external IDP.
No user is provisioned. Unlike, for example, using Google Oauth, where non-existing users are automatically created in my Casdoor organization on login.

This seems to imply that no user is created: https://github.com/casdoor/casdoor/blob/master/controllers/auth.go#L931-L934
