[Dovecot] Authentication cache, failure to login after changed password

[Tom Sommer]

Hi,

I have an issue with the authentication cache.

When a user changes his password, the cache doesn't seem to get flushed.
Meaning the user is unable to log in to his IMAP account after changing
his password.

Flow:
- Log into IMAP account using pass1
  - Approved
    - Stored in auth cache
- Change password to pass2 in MySQL
- Log into IMAP account using pass2
  - Access is denied
- Restart dovecot
- Log into IMAP account using pass2
  - Approved

I'd really like to continue to use the auth cache, is there any solution
to the above? perhaps a way to debug the cache and auth process? I wasn't
able to activate auth_debug without restarting Dovecot and solving the
problem.

Using version 1.1.1, MySQL userdb, with "nopassword=Y".

Maybe it's due to nopassword?

Thanks
--
Tom