$ git clone -n https://gitee.com/opencloudos-stream/mdns-scan.git /var/lib/mock/dist-oc9-epol-build-92838-59354/root/chroot_tmpdir/scmroot/mdns-scan
Cloning into '/var/lib/mock/dist-oc9-epol-build-92838-59354/root/chroot_tmpdir/scmroot/mdns-scan'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/mdns-scan
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68c7f6d package init