$ git clone -n https://gitee.com/opencloudos-stream/ghc-fclabels.git /var/lib/mock/dist-oc9-epol-build-101710-65886/root/chroot_tmpdir/scmroot/ghc-fclabels
Cloning into '/var/lib/mock/dist-oc9-epol-build-101710-65886/root/chroot_tmpdir/scmroot/ghc-fclabels'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-fclabels
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 583d109 update