Very similar to MONGOID-2127 except it also happens with referenced relations.

class Page
  has_many :components
  accepts_nested_attributes_for :components, :allow_destroy => true
end

class Component
  belongs_to :page
  after_save :touch_page
  
  def touch_page
    page.touch
  end
end

When a nested component is given field _destroy = 1 and the page object is saved, the component callback is fired but returns undefined method 'touch' for nil:NilClass. It seems like page_id is getting wiped too soon. Same for after_destroy too. Is this normal?

mongoid (3.0.5)
rails (3.2.2)