$ git clone -n https://gitee.com/src-opencloudos-rpms/mdadm.git /var/lib/mock/dist-oc9-build-118061-68800/root/chroot_tmpdir/scmroot/mdadm
Cloning into '/var/lib/mock/dist-oc9-build-118061-68800/root/chroot_tmpdir/scmroot/mdadm'...
$ git fetch origin 408ff866c0c839e80ddd9b9519788d72ba65272b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mdadm
 * [new ref]         408ff866c0c839e80ddd9b9519788d72ba65272b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 408ff86 import mdadm-4.2-8.tl4