rails/rails — pull request #12509 by eitoball (2013-10-12 12:29:16+00:00)
Title: Fix ActiveSupport::Inflector.pluralize behavior for words that consist of non-ASCII characters

This PR fixes behavior of `ActiveSupport::Inflector.pluralize`.

The code below returns "猫" in 3.2, but "猫s" in 4.0.
```ruby
ActiveSupport::Inflector.inflections do |inflect|
inflect.uncountable "猫"
end
"猫".pluralize
```