$ git clone -n https://gitee.com/src-opencloudos-rpms/iwd.git /var/lib/mock/dist-oc9-build-70121-47394/root/chroot_tmpdir/scmroot/iwd
Cloning into '/var/lib/mock/dist-oc9-build-70121-47394/root/chroot_tmpdir/scmroot/iwd'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/iwd
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ea0e3e import iwd-1.29-1.tl4