nodes.rb in i18n-tasks-0.6.0

- old
+ new

@@ -21,11 +21,15 @@
     def attributes
       {nodes: @list}
     end
 
     def derive(new_attr = {})
-      attr = attributes.merge(new_attr)
-      attr[:nodes] ||= @list.map(&:derive)
+      attr = attributes.except(:nodes, :parent).merge(new_attr)
+      if self.parent
+        new_attr[:parent] ||= Node.null
+      end
+      node_attr = new_attr.slice(:parent)
+      attr[:nodes] ||= @list.map { |node| node.derive(node_attr) }
       self.class.new(attr)
     end
 
     def to_hash
       @hash ||= map(&:to_hash).reduce(:deep_merge!) || {}