$ git clone -n https://gitee.com/opencloudos-stream/ghc-base-prelude.git /var/lib/mock/dist-oc9-epol-build-216661-80916/root/chroot_tmpdir/scmroot/ghc-base-prelude
Cloning into '/var/lib/mock/dist-oc9-epol-build-216661-80916/root/chroot_tmpdir/scmroot/ghc-base-prelude'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-base-prelude
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13471ec !3 Update to 1.6.1.1 Merge pull request !3 from zeyouliu/master