Revoking authorization uses the access token instead of the refresh token

[MathiasTortelboom]

The Cronofy documentation (https://docs.cronofy.com/developers/api/authorization/revoke/) gives the following advice for revoking authorization:

It is recommended that you use the refresh_token as that cannot have expired and therefore be impossible to revoke

The revoke function uses the access token instead:

pycronofy/pycronofy/client.py

Line 531 in 59765fe

def revoke_authorization(self):

pycronofy/pycronofy/client.py

Line 539 in 59765fe

'token': self.auth.access_token,

This gives issues when the access token has expired.
Is there a specific reason the access token is used here?