$ git clone -n https://src.fedoraproject.org/rpms/perl-Mail-DKIM.git /var/lib/mock/f40-build-2221325-52686/root/chroot_tmpdir/scmroot/perl-Mail-DKIM
Cloning into '/var/lib/mock/f40-build-2221325-52686/root/chroot_tmpdir/scmroot/perl-Mail-DKIM'...
$ git fetch origin dd65786a63eef4da20e65c68d2724d2b84ac5781:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mail-DKIM
 * [new ref]         dd65786a63eef4da20e65c68d2724d2b84ac5781 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd65786 Update to 1.20230911