$ git clone -n https://gitee.com/src-opencloudos-rpms/ceph.git /var/lib/mock/dist-oc9-build-229601-81371/root/chroot_tmpdir/scmroot/ceph
Cloning into '/var/lib/mock/dist-oc9-build-229601-81371/root/chroot_tmpdir/scmroot/ceph'...
$ git fetch origin 8e6e76c7f415322ea1a2d48420416bd819fafcb6:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ceph
 * [new ref]         8e6e76c7f415322ea1a2d48420416bd819fafcb6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e6e76c import ceph-18.2.0-14.tl4.2