doveadm fetch complains as Message was expunged

Greeetings,

I do have a cron script which runs doveadm NOT mailbox Junk SEEN SINCE 30d

Everything works well with one exception, if user removes email when it's running, it may lead to an email from cron like:

doveadm(...): Error: fetch(hdr) failed for box=virtual.All uid=145266: Message was expunged (for backend mailbox INBOX)

I feel that it is a bug, isn't it?

-- wbr, Kirill