$ git clone -n https://gitee.com/opencloudos-stream/ghc-servant-client.git /var/lib/mock/dist-oc9-epol-build-107565-67116/root/chroot_tmpdir/scmroot/ghc-servant-client
Cloning into '/var/lib/mock/dist-oc9-epol-build-107565-67116/root/chroot_tmpdir/scmroot/ghc-servant-client'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-servant-client
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ebf9ae update