Errors with latest typo blog v 6.0.9

I downloaded the latest version and attempted to upgrade from 6.0.4.
I’ve tried it on both 1.8.7 and 1.9.2 and I’ve gotten similar but
different errors related to YAML. See below:

Ruby 1.8.7

ActionView::Template::Error (undefined method empty?' for #<YAML::PrivateType:0xb5cf2118 @value="", @type_id="null">): 1: <% if article.password.nil? or article.password.empty? %> 2: <%= render 'articles/article_content', { :article => article } %> 3: <% else %> 4: <%= render 'articles/password_form', { :article => article } %> app/views/articles/_protected_article_content.html.erb:1:in_app_views_articles__protected_article_content_html_erb___984258178__622293848_3709598’
app/controllers/articles_controller.rb:211:in render_paginated_index' app/controllers/articles_controller.rb:38:inindex’
app/controllers/articles_controller.rb:37:in `index’

Ruby 1.9.2

ActionView::Template::Error (undefined method empty?' for #<Syck::PrivateType:0xbe42f18 @type_id="null", @value="">): 1: <% if article.password.nil? or article.password.empty? %> 2: <%= render 'articles/article_content', { :article => article } %> 3: <% else %> 4: <%= render 'articles/password_form', { :article => article } %> app/views/articles/_protected_article_content.html.erb:1:in_app_views_articles__protected_article_content_html_erb__815734403_99983130_96183190’
app/controllers/articles_controller.rb:211:in render_paginated_index' app/controllers/articles_controller.rb:38:inblock (2 levels) in
index’
app/controllers/articles_controller.rb:37:in `index’

Thoughts?

Hi,

Just FYI, this has now been entered as an issue on GitHub:

Regards,
Matijs