$ git clone -n https://src.fedoraproject.org/rpms/kmahjongg.git /var/lib/mock/f40-build-2381850-60448/root/chroot_tmpdir/scmroot/kmahjongg
Cloning into '/var/lib/mock/f40-build-2381850-60448/root/chroot_tmpdir/scmroot/kmahjongg'...
$ git fetch origin 35dc2f9fa75e8150ec1a0a5b380a7886c2a28583:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmahjongg
 * [new ref]         35dc2f9fa75e8150ec1a0a5b380a7886c2a28583 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35dc2f9 24.01.95