$ git clone -n https://gitee.com/opencloudos-stream/ghc-contravariant.git /var/lib/mock/dist-oc9-epol-build-187347-80334/root/chroot_tmpdir/scmroot/ghc-contravariant
Cloning into '/var/lib/mock/dist-oc9-epol-build-187347-80334/root/chroot_tmpdir/scmroot/ghc-contravariant'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-contravariant
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f19d1cc !1 Rebuilt for loongarch64 Merge pull request !1 from brucezhang/master