$ git clone -n https://gitee.com/opencloudos-stream/rubygem-ffi.git /var/lib/mock/dist-oc9-epol-build-205590-80551/root/chroot_tmpdir/scmroot/rubygem-ffi
Cloning into '/var/lib/mock/dist-oc9-epol-build-205590-80551/root/chroot_tmpdir/scmroot/rubygem-ffi'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rubygem-ffi
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75a7cc8 !2 fix build error on loongarch64 Merge pull request !2 from Chris-wh233/master