Edge Rails pro-tip!

When using edge Rails, you should use edge Arel and edge Rack, also. Otherwise you’ll get weird bugs.

gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'arel',  :git => 'git://github.com/rails/arel.git'
gem 'rack',  :git => 'git://github.com/rack/rack.git'
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