$ git clone -n https://gitee.com/src-opencloudos-rpms/device-mapper-persistent-data.git /var/lib/mock/dist-oc9-build-45985-14592/root/chroot_tmpdir/scmroot/device-mapper-persistent-data
Cloning into '/var/lib/mock/dist-oc9-build-45985-14592/root/chroot_tmpdir/scmroot/device-mapper-persistent-data'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/device-mapper-persistent-data
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6caad2 import device-mapper-persistent-data-0.9.0-3.tl4