$ git clone -n https://gitee.com/opencloudos-stream/ghc-snap-server.git /var/lib/mock/dist-oc9-epol-build-224152-81048/root/chroot_tmpdir/scmroot/ghc-snap-server
Cloning into '/var/lib/mock/dist-oc9-epol-build-224152-81048/root/chroot_tmpdir/scmroot/ghc-snap-server'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-snap-server
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7eb8384 !3 fix %install error Merge pull request !3 from epol/master