$ git clone -n https://gitee.com/opencloudos-stream/libmpeg2.git /var/lib/mock/dist-ocs23-build-69287-3993/root/chroot_tmpdir/scmroot/libmpeg2
Cloning into '/var/lib/mock/dist-ocs23-build-69287-3993/root/chroot_tmpdir/scmroot/libmpeg2'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libmpeg2
 * [new ref]                    -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1beacb4 Rebuilt for OpenCloudOS Stream 23.09