[audio/umurmur] umurmurd "switching" to the last group found in group(5) file

Hello,

This is what is being written to /var/log/daemon after fresh install of
umurmur:

Feb 26 13:38:06 foo uMurmurd[34340]: OpenSSL library initialized (version: LibreSSL 3.7.1)
Feb 26 13:38:06 foo uMurmurd[34340]: Setting default channel 'Lobby'
Feb 26 13:38:06 foo uMurmurd[34340]: Adding channel 'Lobby' parent 'Root'
Feb 26 13:38:06 foo uMurmurd[34340]: Adding channel 'Silent' parent 'Root'
Feb 26 13:38:06 foo uMurmurd[34340]: Adding channel 'Red team' parent 'Lobby'
Feb 26 13:38:06 foo uMurmurd[34340]: Adding channel 'Blue team' parent 'Lobby'
Feb 26 13:38:06 foo uMurmurd[34340]: Adding channel link 'Lobby' -> 'Red team'
Feb 26 13:38:06 foo uMurmurd[34340]: Adding channel link 'Lobby' -> 'Blue team'
Feb 26 13:38:06 foo uMurmurd[34340]: Switch to user '_umurmur' group '_umurmur'
Feb 26 13:38:06 foo uMurmurd[34340]: uMurmur version 0.2.20 ('Bonkers') protocol version 1.2.4
Feb 26 13:38:06 foo uMurmurd[34340]: Visit https://github.com/umurmur/umurmur

After an upgrade to the latest snapshot and having installed gotd,
I've noticed an odd and misleading information produced by umurmurd:

Feb 27 12:14:45 foo uMurmurd[57309]: OpenSSL library initialized (version: LibreSSL 3.7.1)
Feb 27 12:14:45 foo uMurmurd[57309]: Setting default channel 'Lobby'
Feb 27 12:14:45 foo uMurmurd[57309]: Adding channel 'Lobby' parent 'Root'
Feb 27 12:14:45 foo uMurmurd[57309]: Adding channel 'Silent' parent 'Root'
Feb 27 12:14:45 foo uMurmurd[57309]: Adding channel 'Red team' parent 'Lobby'
Feb 27 12:14:45 foo uMurmurd[57309]: Adding channel 'Blue team' parent 'Lobby'
Feb 27 12:14:45 foo uMurmurd[57309]: Adding channel link 'Lobby' -> 'Red team'
Feb 27 12:14:45 foo uMurmurd[57309]: Adding channel link 'Lobby' -> 'Blue team'
Feb 27 12:14:45 foo uMurmurd[57309]: Switch to user '_umurmur' group '_gotd'
Feb 27 12:14:45 foo uMurmurd[57309]: uMurmur version 0.2.20 ('Bonkers') protocol version 1.2.4
Feb 27 12:14:46 foo uMurmurd[57309]: Visit https://github.com/umurmur/umurmur

In case this isn't clear - this is the line in question:

Feb 27 12:14:45 foo uMurmurd[57309]: Switch to user '_umurmur' group '_gotd'

Why would umurmurd switch to group _gotd?

Given that it was the last piece of software I installed or, rather,
it was the last group added to the system, it must be related, no?

$ tail -n 1 /etc/group
_gotd:*:501:

A quick test confirmed it - umurmurd says that it switches to a
particular group and, as it happens, said group is simply the last
entry found in group(5) file; I've added a 'git' user, with a
corresponding group:

$ tail -n 2 /etc/group
_gotd:*:501:
git:*:999:

and sure enough:

Feb 28 09:44:14 foo uMurmurd[42595]: OpenSSL library initialized (version: LibreSSL 3.7.1)
Feb 28 09:44:14 foo uMurmurd[42595]: Setting default channel 'Lobby'
Feb 28 09:44:15 foo uMurmurd[42595]: Adding channel 'Lobby' parent 'Root'
Feb 28 09:44:15 foo uMurmurd[42595]: Adding channel 'Silent' parent 'Root'
Feb 28 09:44:15 foo uMurmurd[42595]: Adding channel 'Red team' parent 'Lobby'
Feb 28 09:44:15 foo uMurmurd[42595]: Adding channel 'Blue team' parent 'Lobby'
Feb 28 09:44:15 foo uMurmurd[42595]: Adding channel link 'Lobby' -> 'Red team'
Feb 28 09:44:15 foo uMurmurd[42595]: Adding channel link 'Lobby' -> 'Blue team'
Feb 28 09:44:15 foo uMurmurd[42595]: Switch to user '_umurmur' group 'git'
Feb 28 09:44:15 foo uMurmurd[42595]: uMurmur version 0.2.20 ('Bonkers') protocol version 1.2.4
Feb 28 09:44:15 foo uMurmurd[42595]: Visit https://github.com/umurmur/umurmur

What's odd, though, is that umurmur does *not* seem to be switching
to that group - it only says it does:

$ pgrep -G git -l
$ echo $?
1
$ pgrep -G _umurmur -l
42595 umurmurd

So it looks like it is only _pretty printing_ that's broken.

Cheers,

Raf

P.S. I'm not subscribed to this mailing list so please CC me if need be.