$ git clone -n https://src.fedoraproject.org/rpms/python-ffmpeg-python.git /var/lib/mock/f40-build-2203425-51923/root/chroot_tmpdir/scmroot/python-ffmpeg-python
Cloning into '/var/lib/mock/f40-build-2203425-51923/root/chroot_tmpdir/scmroot/python-ffmpeg-python'...
$ git fetch origin a6f7ea0a6b83dcb184df2fffa7e7fa59168f421e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ffmpeg-python
 * [new ref]         a6f7ea0a6b83dcb184df2fffa7e7fa59168f421e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6f7ea0 Remove dependency on python3-future