[Dovecot] Doveadm sometimes failed "to iterate through some users" after upgrade to 2.2

[David Davidov]

>  Yes, after an upgrade works fine.

Hello,

Unfortunately this issue hits again. I installed the latest stable
version 2.2.15 and got the following error

# doveadm expunge -u "^o^@dave.s484.qa-team.net" mailbox 'INBOX.Junk
Mail' SAVEDBEFORE 7d
doveadm(^o^@dave.s484.qa-team.net): Error: userdb
lookup(^o^@dave.s484.qa-team.net): Disconnected unexpectedly
doveadm(^o^@dave.s484.qa-team.net): Fatal: User lookup failed: Internal
error occurred. Refer to server log for more information.

# echo $?
75

Our production servers run 2.2.13, where the situation is the same.

regards,
David Davidov
System administrator @ icdsoft.com

-- 
David Davidov | System Administrator | ICDSoft Ltd.