Ah, yes, that's correct. I guess I was assuming that once you issue a new authorization code, the authorization server should invalidate any previously issued a

Ah, yes, that's correct. I guess I was assuming that once you issue a new authorization code, the authorization server should invalidate any previously issued access_tokens/refresh_tokens because the new authorization code represents a new grant. Or are you supposed to wait until the code is sent to the token endpoint (to get the access_token/refresh_token) before invalidating old access_tokens?