Server does not LOGOUT and terminate connection after LOGOUT command

[Harald Barth]

Cyrus IMAP v2.4.17-caldav-beta10-Debian-2.4.17+caldav~beta10-18

Transcript of session which shows the bug:

TLS connection established: TLSv1.2 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)
S: * OK [CAPABILITY IMAP4rev1 LITERAL+ ID ENABLE AUTH=GSSAPI AUTH=PLAIN SASL-IR] jaja.besserwisser.org Cyrus IMAP v2.4.17-caldav-beta10-Debian-2.4.17+caldav~beta10-18 server ready
C: A01 AUTHENTICATE GSSAPI (...)

(...)

Authenticated.

(...)

A01 SELECT INBOX
* 36663 EXISTS
* 0 RECENT
* FLAGS (\Answered \Flagged \Draft \Deleted \Seen NonJunk Junk)
* OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen NonJunk Junk \*)] Ok
* OK [UNSEEN 13118] Ok
* OK [UIDVALIDITY 1432645567] Ok
* OK [UIDNEXT 43665] Ok
* OK [HIGHESTMODSEQ 37813] Ok
* OK [URLMECH INTERNAL] Ok
A01 OK [READ-WRITE] Completed
AO2 LOGOUT 
* BYE LOGOUT received
AO2 OK Completed
A03 SELECT INBOX
* OK [CLOSED] Ok
* 36663 EXISTS
* 0 RECENT
* FLAGS (\Answered \Flagged \Draft \Deleted \Seen NonJunk Junk)
* OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen NonJunk Junk \*)] Ok
* OK [UNSEEN 13118] Ok
* OK [UIDVALIDITY 1432645567] Ok
* OK [UIDNEXT 43665] Ok
* OK [HIGHESTMODSEQ 37813] Ok
* OK [URLMECH INTERNAL] Ok
A03 OK [READ-WRITE] Completed

After A02 LOGOUT the session should have been terminated by the server
and a SELECT INBOX should _NOT_ have been possible.

Regards,
Harald.