$ git clone -n https://gitee.com/src-opencloudos-rpms/libmnl.git /var/lib/mock/dist-oc9-build-128345-77277/root/chroot_tmpdir/scmroot/libmnl
Cloning into '/var/lib/mock/dist-oc9-build-128345-77277/root/chroot_tmpdir/scmroot/libmnl'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libmnl
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 917d937 import libmnl-1.0.5-6.tl4