.values works wrong when some keys are overridden?

https://github.com/dblock/ruby-enum/blob/9b8676cdb1ccd94fdaddf12741e46d20e1ddc2fd/spec/ruby-enum/enum_spec.rb#L436

```ruby
expect(SubclassRedefiningParentKey.values).to eq(%w[red green crimson])
```

Shouldn't this be only `%w[green crimson]` ?
Look a few lines above:
```ruby
expect(SubclassRedefiningParentKey.to_h).to eq(RED: 'crimson', GREEN: 'green')
```