$ git clone -n https://gitee.com/opencloudos-stream/ghc-crypton-connection.git /var/lib/mock/dist-oc9-epol-build-226167-81108/root/chroot_tmpdir/scmroot/ghc-crypton-connection
Cloning into '/var/lib/mock/dist-oc9-epol-build-226167-81108/root/chroot_tmpdir/scmroot/ghc-crypton-connection'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-crypton-connection
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7194a81 !2 Rebuilt Merge pull request !2 from epol/master