$ git clone -n https://gitee.com/tomcruiseqi/systemd.git /var/lib/mock/dist-an23.3-build-482293-74250/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-an23.3-build-482293-74250/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin 5f4264fcb40853c3350754b899715c1701bf7141:KOJI_FETCH_HEAD
From https://gitee.com/tomcruiseqi/systemd
 * [new ref]         5f4264fcb40853c3350754b899715c1701bf7141 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f4264f update systemd.spec.