$ git clone -n https://gitee.com/src-opencloudos-rpms/systemd.git /var/lib/mock/dist-oc8-build-211346-80697/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-oc8-build-211346-80697/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin 3f059f4ff59df2e876178bd833b4d6ada16d1112:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/systemd
 * [new ref]         3f059f4ff59df2e876178bd833b4d6ada16d1112 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f059f4 import systemd-239-82.tl3.3.ap.2