$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-libnet.git /var/lib/mock/dist-oc9-build-60911-16463/root/chroot_tmpdir/scmroot/perl-libnet
Cloning into '/var/lib/mock/dist-oc9-build-60911-16463/root/chroot_tmpdir/scmroot/perl-libnet'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-libnet
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac29431 import perl-libnet-3.15-2.tl4