Add sort order method that doesn't reload the class.

lib/redd/client.rb

@@ -33,6 +33,7 @@ def initialize(endpoint:, user_agent: USER_AGENT)
     # @option options [Hash] :body the direct body contents
     # @return [Response] the response
     def request(verb, path, options = {})
+      # puts "#{verb.to_s.upcase} #{path}", '  ' + options.inspect
       response = connection.request(verb, path, **options)
       Response.new(response.status.code, response.headers, response.body.to_s)
     end

lib/redd/models/comment.rb

@@ -103,6 +103,10 @@ class Comment < Model
       #   @deprecated is always 0; use {#score} instead
       property :downs
 
+      # @!attribute [r] parent_id
+      #   @return [String] the parent fullname
+      property :parent_id
+
       # @!attribute [r] parent
       #   @return [Comment, Submission] the comment parent
       property :parent,

lib/redd/models/submission.rb

@@ -20,6 +20,11 @@ class Submission < Model
       include Replyable
       include Reportable
 
+      # @return [String] the sort order
+      def sort_order
+        exists_locally?(:sort_order) ? read_attribute(:sort_order) : nil
+      end
+
       # Set the sort order of the comments and reload the comments.
       # @param new_order [:confidence, :top, :controversial, :old, :qa] the sort order
       def update_sort_order(new_order)
@@ -103,7 +108,8 @@ def set_suggested_sort(suggested) # rubocop:disable Naming/AccessorMethodName
 
       # @!attribute [r] comments
       #   @return [Array<Comment>] the comment tree
-      property :comments, :nil, with: ->(l) { Listing.new(client, l) if l }
+      property :comments, :nil,
+               with: ->(l) { CommentListing.new(self, l ? Listing.new(client, l) : nil) }
 
       # @!attribute [r] domain
       #   @return [String] the domain name of the link (or self.subreddit_name)