$ git clone -n https://gitee.com/guost123/libffi.git /var/lib/mock/dist-an23.3-build-431782-73055/root/chroot_tmpdir/scmroot/libffi
Cloning into '/var/lib/mock/dist-an23.3-build-431782-73055/root/chroot_tmpdir/scmroot/libffi'...
$ git fetch origin 82c5ba0f3253c653aa5b19bf8d64feea8c6fc5d3:KOJI_FETCH_HEAD
From https://gitee.com/guost123/libffi
 * [new ref]         82c5ba0f3253c653aa5b19bf8d64feea8c6fc5d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82c5ba0 adapt for riscv64