$ git clone -n https://gitee.com/wency_cn/device-mapper-persistent-data.git /var/lib/mock/dist-an23-build-497938-74608/root/chroot_tmpdir/scmroot/device-mapper-persistent-data
Cloning into '/var/lib/mock/dist-an23-build-497938-74608/root/chroot_tmpdir/scmroot/device-mapper-persistent-data'...
$ git fetch origin e7a99bb915833c44225b8cc22aadcfc52fb48986:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/device-mapper-persistent-data
 * [new ref]         e7a99bb915833c44225b8cc22aadcfc52fb48986 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e7a99bb Update code from upstream