It might be a useful idea to have fedpkg clone directly set up the push.default property.
fedpkg clone
http://fedorapeople.org/gitweb?p=ndim/public_git/fedora-packager.git;a=commitdiff;h=af5004cb3235eb2130f3800b13ebad73e3d4d1ba
Yeah, I'd say that's fine for now.