[Fedora-packaging] fedpkg push UserWarning

I got the warnings below when I did a fedpkg push The push and subsequent build seemed to have worked correctly. What do these warnings mean and how do I fix my system so that I do not get them ? cppad>fedpkg push Total 0 (delta 0), reused 0 (delta 0) remote: /usr/lib64/python2.7/site-packages/cffi/model.py:526: UserWarning: 'git_checkout_notify_t' has no values explicitly defined; next version will refuse to guess which integer type it is meant to be (unsigned/signed, int/long) remote: % self._get_c_name()) remote: /usr/lib64/python2.7/site-packages/cffi/model.py:526: UserWarning: 'git_merge_tree_flag_t' has no values explicitly defined; next version will refuse to guess which integer type it is meant to be (unsigned/signed, int/long) remote: % self._get_c_name()) remote: Emitting a message to the fedmsg bus. remote: * Publishing information for 1 commits To ssh://pkgs.fedoraproject.org/rpms/cppad 4ecffef..25e6f4c f26 -> f26