$ git clone -n https://gitee.com/opencloudos-stream/ghc-snap-core.git /var/lib/mock/dist-oc9-epol-build-226927-81132/root/chroot_tmpdir/scmroot/ghc-snap-core
Cloning into '/var/lib/mock/dist-oc9-epol-build-226927-81132/root/chroot_tmpdir/scmroot/ghc-snap-core'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-snap-core
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4b0bb3 !3 Rebuilt for ghc-network Merge pull request !3 from epol/master