CI build fix

[thewoolleyman (Chad Woolley)]

I believe this:

https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/2686-fix-ci-build-patch-fix-eager-association-test-related-to-different-ordering-on-sqlite

fixes the only (current) build failure for master branch:

http://ci.rubyonrails.org/builds/rails

-- Chad