$ git clone -n https://gitee.com/src-opencloudos-rpms/systemd.git /var/lib/mock/dist-oc8-build-248749-83735/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-oc8-build-248749-83735/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin fe75c5e32c637b0aa56931935b35072145212da6:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/systemd
 * [new ref]         fe75c5e32c637b0aa56931935b35072145212da6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe75c5e import systemd-239-82.tl3.19.ap.1