$ git clone -n https://gitee.com/src-opencloudos-rpms/systemd.git /var/lib/mock/dist-oc8-build-233775-81900/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-oc8-build-233775-81900/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin 97939b2ad7965a4e96a932b5113ddb3f3109a283:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/systemd
 * [new ref]         97939b2ad7965a4e96a932b5113ddb3f3109a283 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97939b2 import systemd-239-82.tl3.13.ap.1