$ git clone -n https://gitee.com/wenyuzifang/mdadm.git /var/lib/mock/dist-an23-build-466414-73981/root/chroot_tmpdir/scmroot/mdadm
Cloning into '/var/lib/mock/dist-an23-build-466414-73981/root/chroot_tmpdir/scmroot/mdadm'...
$ git fetch origin f4a374cb27ff3bbf25301130c5e3c5a43a303ce1:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/mdadm
 * [new ref]         f4a374cb27ff3bbf25301130c5e3c5a43a303ce1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4a374c Update code from upstream