$ git clone -n https://gitee.com/src-opencloudos-rpms/systemd.git /var/lib/mock/dist-oc8-build-116921-68210/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-oc8-build-116921-68210/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin 6be17d3075656c710207d6955db48ec39355556a:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/systemd
 * [new ref]         6be17d3075656c710207d6955db48ec39355556a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6be17d3 import systemd-239-82.tl3.2