$ git clone -n https://gitee.com/src-opencloudos-rpms/systemd /var/lib/mock/dist-oc8_6-updates-build-26822-7870/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-oc8_6-updates-build-26822-7870/root/chroot_tmpdir/scmroot/systemd'...
$ git reset --hard origin/oc8
HEAD is now at 2fae51d import systemd-239-58.oc8_6.7