$ git clone -n https://gitee.com/wency_cn/mdadm.git /var/lib/mock/dist-an23-build-508230-74974/root/chroot_tmpdir/scmroot/mdadm
Cloning into '/var/lib/mock/dist-an23-build-508230-74974/root/chroot_tmpdir/scmroot/mdadm'...
$ git fetch origin 450d0e5607240e35f5c12b4fbacc97b378cbd14c:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/mdadm
 * [new ref]         450d0e5607240e35f5c12b4fbacc97b378cbd14c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 450d0e5 Update code from upstream