$ git clone -n https://gitee.com/ocs-bot/libffi.git /var/lib/mock/dist-ocs23-build-172276-10545/root/chroot_tmpdir/scmroot/libffi
Cloning into '/var/lib/mock/dist-ocs23-build-172276-10545/root/chroot_tmpdir/scmroot/libffi'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/ocs-bot/libffi
 * [new ref]                    -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3428d2f Upgrade to version 3.4.6