$ git clone -n https://gitee.com/opencloudos-stream/ghc-distributive.git /var/lib/mock/dist-oc9-epol-build-214924-80808/root/chroot_tmpdir/scmroot/ghc-distributive
Cloning into '/var/lib/mock/dist-oc9-epol-build-214924-80808/root/chroot_tmpdir/scmroot/ghc-distributive'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-distributive
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ec3f93 !2 Rebuilt for loongarch64 Merge pull request !2 from brucezhang/master