$ git clone -n https://src.fedoraproject.org/rpms/seabios.git /var/lib/mock/f38-build-side-42-init-devel-957784-28787/root/chroot_tmpdir/scmroot/seabios
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-957784-28787/root/chroot_tmpdir/scmroot/seabios'...
$ git fetch origin d032ad5e7abc1dbbb16d50455ec2ac4e8e5fe2f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/seabios
 * [new ref]         d032ad5e7abc1dbbb16d50455ec2ac4e8e5fe2f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d032ad5 Update to 1.16.2