Filtering via xpath breaks when tag != class name

[kjf]

If I change the xpath_spec.rb to this:

class TestBaby
  include HappyMapper

  tag 'baby'
  has_one :name, String
end

class Item
  include HappyMapper

  tag 'item'
  namespace 'amazing'

  element :title, String
  attribute :link, String, :xpath => 'amazing:link/@href'
  has_one :different_link, String, :xpath => 'different:link/@href'
  element :detail, String, :xpath => 'amazing:subitem/amazing:detail'
  has_many :more_details_text, String, :xpath => 'amazing:subitem/amazing:more'
  has_many :more_details, String, :xpath => 'amazing:subitem/amazing:more/@first|amazing:subitem/amazing:more/@alternative'
  has_many :more_details_alternative, String, :xpath => 'amazing:subitem/amazing:more/@*'

  has_one :test_baby, TestBaby, :namespace => 'amazing'

end

Then things start to break down. It seems that xpath filtering does not like it when we the class name does not match the tag name.

[burtlo]

I'll have to take a look at this further. By breakdown means, it all blows up or fails to match things?