$ git clone -n https://gitee.com/wency_cn/mdadm_1770900916.git /var/lib/mock/dist-an23-build-514196-75110/root/chroot_tmpdir/scmroot/mdadm_1770900916
Cloning into '/var/lib/mock/dist-an23-build-514196-75110/root/chroot_tmpdir/scmroot/mdadm_1770900916'...
$ git fetch origin 2b2175b24e682d6c631f32bb6e7e8ddf052a1f6b:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/mdadm_1770900916
 * [new ref]         2b2175b24e682d6c631f32bb6e7e8ddf052a1f6b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b2175b Update code from upstream