Hobo Hobo → Hobo 1.3 (Rails 3)

Hobo breaks form_tag helper from rails by closing the start tag.
html looks like:

<form action="/" method="post" />
  <div style="margin:0;padding:0;display:inline"><input name="authenticity_token" type="hidden"   
   value="jWfMwq+S3u7Sm+bBpsJJDZIbeOmlF9cXGWgkyLZU81E=" /></div>
 <div>
  <input name="commit" type="submit" value="Submit" />
 </div>
</form>

The relevant code that breaks the thing:

[-1, 8] in /Library/Ruby/Gems/1.8/gems/hobo-1.0.0/lib/action_view_extensions/helpers/tag_helper.rb
   1  module ActionView::Helpers::TagHelper
   2    alias_method :tag_without_doctype, :tag
   3    def tag(name, options = nil, open = false, escape = true)
=> 4      open = !scope.xmldoctype if defined?(scope)
   5      tag_without_doctype(name, options, open, escape)
   6    end
   7  end
/Library/Ruby/Gems/1.8/gems/hobo-1.0.0/lib/action_view_extensions/helpers/tag_helper.rb:4
open = !scope.xmldoctype if defined?(scope)
(rdb:111) p open
true
(rdb:111) n
[0, 9] in /Library/Ruby/Gems/1.8/gems/hobo-1.0.0/lib/action_view_extensions/helpers/tag_helper.rb
   1  module ActionView::Helpers::TagHelper
   2    alias_method :tag_without_doctype, :tag
   3    def tag(name, options = nil, open = false, escape = true)
   4      open = !scope.xmldoctype if defined?(scope)
=> 5      tag_without_doctype(name, options, open, escape)
   6    end
   7  end
/Library/Ruby/Gems/1.8/gems/hobo-1.0.0/lib/action_view_extensions/helpers/tag_helper.rb:5
tag_without_doctype(name, options, open, escape)
(rdb:111) p open
false