doveadm expunge no longer works

[Fabian Groffen]

Heya,

Just upgraded from 2.2.19 to dovecot-2.2.21 and noticed expunging mail
no longer works.

# doveadm expunge -u theuser MAILBOX spam all
Fatal: expunge: To avoid accidents, each branch in search query must
contain something else besides MAILBOX (e.g. just add "all" if you want
everything)

Clearly, I've already got all in there, so I tried capitalising, etc.
Looking at the code, I see expunge_search_args_is_msgset_or_ok
apparently is failing.  I'm wondering if this function [1] is actually doing what it is supposed to do, since it uses return, instead a var to figure out whether it is ok or not.  In my case, just because it finds MAILBOX it returns without looking whether there is any further arguments.

Or am I missing the point here (and how should I expunge a folder of
mail?)

Thanks,
Fabian

[1] https://github.com/dovecot/core/blob/6971937a6f3e93844dbd43bdbe903628e21a9422/src/doveadm/doveadm-mail-expunge.c#L148

-- 
Fabian Groffen
Gentoo on a different level
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