$ git clone -n https://gitee.com/src-opencloudos-rpms/mdadm /var/lib/mock/dist-oc8-build-58003-15846/root/chroot_tmpdir/scmroot/mdadm
Cloning into '/var/lib/mock/dist-oc8-build-58003-15846/root/chroot_tmpdir/scmroot/mdadm'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mdadm
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 85dac7e import mdadm-4.2-8.tl3