$ git clone -n https://gitee.com/src-opencloudos-rpms/systemd.git /var/lib/mock/dist-oc8-build-38383-12415/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-oc8-build-38383-12415/root/chroot_tmpdir/scmroot/systemd'...
$ git reset --hard origin/oc8
HEAD is now at 545fe99 import systemd-239-74.tl3