$ git clone -n https://gitee.com/src-opencloudos-rpms/grubby.git /var/lib/mock/dist-oc8-build-245733-83358/root/chroot_tmpdir/scmroot/grubby
Cloning into '/var/lib/mock/dist-oc8-build-245733-83358/root/chroot_tmpdir/scmroot/grubby'...
$ git fetch origin 52fcc6084fb736b8f674f0f1359d90d61dc8888d:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/grubby
 * [new ref]         52fcc6084fb736b8f674f0f1359d90d61dc8888d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 52fcc60 import grubby-8.40-51.tl3