$ git clone -n https://gitee.com/src-opencloudos-rpms/systemd.git /var/lib/mock/dist-oc8-build-123552-72969/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-oc8-build-123552-72969/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin e8a3f87d05bc8a1a9cdfbf3d22802a64c2662e4d:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/systemd
 * [new ref]         e8a3f87d05bc8a1a9cdfbf3d22802a64c2662e4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8a3f87 import systemd-239-82.tl3.3.ap.1