$ git clone -n https://gitee.com/fundawang/ceph.git /var/lib/mock/dist-an23-build-309859-67129/root/chroot_tmpdir/scmroot/ceph
Cloning into '/var/lib/mock/dist-an23-build-309859-67129/root/chroot_tmpdir/scmroot/ceph'...
$ git fetch origin 9150ca0987e630e023676639b99f02850ad39ef0:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/ceph
 * [new ref]         9150ca0987e630e023676639b99f02850ad39ef0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9150ca0 18.2.0