$ git clone -n https://gitee.com/opencloudos-stream/ghc-aws.git /var/lib/mock/dist-oc9-epol-build-227268-81147/root/chroot_tmpdir/scmroot/ghc-aws
Cloning into '/var/lib/mock/dist-oc9-epol-build-227268-81147/root/chroot_tmpdir/scmroot/ghc-aws'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-aws
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f2afad !4 fix %install error Merge pull request !4 from epol/master