$ git clone -n https://gitee.com/src-opencloudos-rpms/simple-scan.git /var/lib/mock/dist-oc9-build-48149-14592/root/chroot_tmpdir/scmroot/simple-scan
Cloning into '/var/lib/mock/dist-oc9-build-48149-14592/root/chroot_tmpdir/scmroot/simple-scan'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/simple-scan
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c51fff1 import simple-scan-42.5-3.tl4