$ git clone -n https://gitee.com/src-opencloudos-rpms/setserial.git /var/lib/mock/dist-oc9-build-71997-47624/root/chroot_tmpdir/scmroot/setserial
Cloning into '/var/lib/mock/dist-oc9-build-71997-47624/root/chroot_tmpdir/scmroot/setserial'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/setserial
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b43209 import setserial-2.17-4.tl4