If authentication client disconnects while it still has pending requests, don't crash (got broken in the large pointer-change commit).
If authentication client disconnects while it still has pending requests,
don't crash (got broken in the large pointer-change commit).

damoxc/dovecot,Distrotech/dovecot,damoxc/dovecot,damoxc/dovecot,Distrotech/dovecot,Distrotech/dovecot,damoxc/dovecot,Distrotech/dovecot,damoxc/dovecot,Distrotech/dovecot