I have got a problem with acts_as_paranoid and associations in production mode (development works fine).

class User
  acts_as_paranoid
  has_many :activities, :as => :owner, :dependent => :destroy
end

class Activity
  acts_as_paranoid
  belongs_to :owner, :polymorphic => true
end

When I call Activity.destroy(x), everything workes fine. But when I want to destroy the User (and the activities with it), I get an TypeError: can't modify frozen hash error. I do have some equivalent associations and always get an error, when I want to destroy an object, with associatiated paranoid elements.

In development mode everythings works fine!
I'm using Rails 2.3.2 and the latest acts_as_paranoid version.