$ git clone -n https://gitee.com/src-opencloudos-rpms/unifdef /var/lib/mock/dist-oc8-build-58159-15956/root/chroot_tmpdir/scmroot/unifdef
Cloning into '/var/lib/mock/dist-oc8-build-58159-15956/root/chroot_tmpdir/scmroot/unifdef'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/unifdef
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8efb412 import unifdef-2.10-21.tl3