$ git clone -n https://gitee.com/wency_cn/mdadm_1770721568.git /var/lib/mock/dist-an23-build-513065-75099/root/chroot_tmpdir/scmroot/mdadm_1770721568
Cloning into '/var/lib/mock/dist-an23-build-513065-75099/root/chroot_tmpdir/scmroot/mdadm_1770721568'...
$ git fetch origin 304271af3d7b8b8ce4d8ef01ec5d1718dce501c4:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/mdadm_1770721568
 * [new ref]         304271af3d7b8b8ce4d8ef01ec5d1718dce501c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 304271a Update code from upstream