rails/rails — pull request #6716 by frodsan (2012-06-12 22:13:55+00:00)
Title: Fix Build

In Ruby 1.8, the order in which +keys+ will return keys, or +each+ yield pairs is undefined.

I guess, this is why this test is breaking the build:

```ruby
def test_dup_call_parent_dup_when_include_validations
book = Book.new
book['title'] = "Litterature"
book['author'] = "Foo"
duped = book.dup

assert_equal book.keys, duped.keys
assert_equal book.values, duped.values
end
```