$ git clone -n https://src.fedoraproject.org/rpms/m17n-db.git /var/lib/mock/f41-build-side-1-3132752-39664/root/chroot_tmpdir/scmroot/m17n-db
Cloning into '/var/lib/mock/f41-build-side-1-3132752-39664/root/chroot_tmpdir/scmroot/m17n-db'...
$ git fetch origin 6d51bce72a89a4b57a1855daa1f71bb7a178c898:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/m17n-db
 * [new ref]         6d51bce72a89a4b57a1855daa1f71bb7a178c898 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d51bce Update to 1.8.9