$ git clone -n https://src.fedoraproject.org/rpms/perl-Mail-DKIM.git /var/lib/mock/f39-build-1451084-32789/root/chroot_tmpdir/scmroot/perl-Mail-DKIM
Cloning into '/var/lib/mock/f39-build-1451084-32789/root/chroot_tmpdir/scmroot/perl-Mail-DKIM'...
$ git fetch origin 5561538b1bdcb516113ee8f2a9e3614592ceb03d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mail-DKIM
 * [new ref]         5561538b1bdcb516113ee8f2a9e3614592ceb03d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5561538 Update to 1.20230630