$ git clone -n https://gitee.com/mgb01105731/mdadm.git /var/lib/mock/dist-an23.2-build-422660-72922/root/chroot_tmpdir/scmroot/mdadm
Cloning into '/var/lib/mock/dist-an23.2-build-422660-72922/root/chroot_tmpdir/scmroot/mdadm'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/mdadm
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 265742b Update to 4.3 from 4.2