$ git clone -n https://gitee.com/src-opencloudos-rpms/mtr.git /var/lib/mock/dist-oc9-build-175641-79938/root/chroot_tmpdir/scmroot/mtr
Cloning into '/var/lib/mock/dist-oc9-build-175641-79938/root/chroot_tmpdir/scmroot/mtr'...
$ git fetch origin 3dd9b7712a790faa27cfe1163f80de78b116e7c0:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mtr
 * [new ref]         3dd9b7712a790faa27cfe1163f80de78b116e7c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3dd9b77 import mtr-0.95-8.tl4