mo

hmm.. this only happens with "@product.categorizations.build" in the products_controller.

I noticed something else. If I create/edit a product, choose a categor...

class Product < ActiveRecord::Base
  has_many :categorizations
  accepts_nested_attributes_for :categorizations
end

class Categorization < ActiveRecord::...

In previous version the default value for file_field was an empty string - now it's nil an brokes e.g. the paperclip-plugin.. because by editing and not chosing...