value is always a link

Author: mkon

lib/active_model_serializers/adapter/json_api.rb

@@ -482,11 +482,8 @@ def relationships_for(serializer, requested_associations, include_slice)
       #   }.reject! {|_,v| v.nil? }
       def links_for(serializer)
         serializer._links.each_with_object({}) do |(name, value), hash|
-          if value.is_a?(ActiveModel::Serializer::Link)
-            next if value.excluded?(serializer)
-            value = value.block
-          end
-          result = Link.new(serializer, value).as_json
+          next if value.excluded?(serializer)
+          result = Link.new(serializer, value.block).as_json
           hash[name] = result if result
         end
       end