$ git clone -n https://gitee.com/opencloudos-stream/ghc-ghc-paths.git /var/lib/mock/dist-oc9-epol-build-226800-81132/root/chroot_tmpdir/scmroot/ghc-ghc-paths
Cloning into '/var/lib/mock/dist-oc9-epol-build-226800-81132/root/chroot_tmpdir/scmroot/ghc-ghc-paths'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-ghc-paths
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d0e4b60 !3 fix build error Merge pull request !3 from brucezhang/master