$ git clone -n https://gitee.com/src-opencloudos-rpms/osbuild-composer /var/lib/mock/dist-oc8-build-56704-14908/root/chroot_tmpdir/scmroot/osbuild-composer
Cloning into '/var/lib/mock/dist-oc8-build-56704-14908/root/chroot_tmpdir/scmroot/osbuild-composer'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/osbuild-composer
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b76d48e !2 Support for OpenCloudOS 8.6 and 8.8 Merge pull request !2 from Sephirah/oc8