Odd log messages: failed giving admin UNIX wheel permissions

[troglobit]

From /log/syslog on a recent main (c44621b8), the following odd log messages can be found:

Oct 10 17:07:48 ix finit[1]: Starting confd[3047]
Oct 10 17:07:48 ix load[3055]: Loading startup-config ...
Oct 10 17:07:48 ix confd[3047]: Username "admin" is valid
Oct 10 17:07:48 ix confd[3047]: Failed giving user "admin" UNIX sys-cli permissions.
Oct 10 17:07:48 ix confd[3047]: Failed giving user "admin" UNIX wheel permissions.
Oct 10 17:07:48 ix confd[3047]: Reusing uid:gid 1000:1000 and /home/admin for new user "admin"
Oct 10 17:07:48 ix confd[3047]: User "admin" added to UNIX "sys-cli" group.
Oct 10 17:07:48 ix confd[3047]: User "admin" created, mapped to existing home directory.
Oct 10 17:07:48 ix confd[3047]: Password updated for user "admin"
Oct 10 17:07:48 ix confd[3047]: Login shell updated for user "admin"
Oct 10 17:07:48 ix confd[3047]: addgroup: unknown user admin
Oct 10 17:07:48 ix last message buffered 1 times
Oct 10 17:07:48 ix load[3055]: Success, syncing with startup datastore.
Oct 10 17:07:48 ix load[3055]: Loaded /cfg/startup-config.cfg successfully.

The first bold messages in particular.