$ git clone -n https://gitee.com/opencloudos-stream/ghc-control-monad-free.git /var/lib/mock/dist-oc9-epol-build-101633-65872/root/chroot_tmpdir/scmroot/ghc-control-monad-free
Cloning into '/var/lib/mock/dist-oc9-epol-build-101633-65872/root/chroot_tmpdir/scmroot/ghc-control-monad-free'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-control-monad-free
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 66cc87f update