$ git clone -n https://gitee.com/opencloudos-stream/ghc-pattern-arrows.git /var/lib/mock/dist-oc9-epol-build-101940-65928/root/chroot_tmpdir/scmroot/ghc-pattern-arrows
Cloning into '/var/lib/mock/dist-oc9-epol-build-101940-65928/root/chroot_tmpdir/scmroot/ghc-pattern-arrows'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-pattern-arrows
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b64b7c6 update