$ git clone -n https://gitee.com/opencloudos-stream/unifdef.git /var/lib/mock/dist-ocs23-base-build-287006-27909/root/chroot_tmpdir/scmroot/unifdef
Cloning into '/var/lib/mock/dist-ocs23-base-build-287006-27909/root/chroot_tmpdir/scmroot/unifdef'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/unifdef
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55cd391 Rebuilt for clarifying the packages requirement in BaseOS and AppStream