Fix getting `attributes` before virtual attribute was ever read

- Lookup existing relation with ID and relation_type not nil (some
relation column > 0)

If you access in this order:
- Get `relation.attributes` -> relation_type is nil
- Get `relation.relaton_type` -> nil always after that

If you access the other way around, everything's okay:
- Get `relation.relaton_type` -> expected value
- Get `relation.attributes` -> expecte dvalue

app/models/concerns/virtual_attribute.rb

@@ -40,10 +40,19 @@ module Concerns
         _define_virtual_attribute_setter(attribute)
         _define_virtual_attribute_getter(attribute, &block)
         _define_virtual_attribute_reload(attribute)
+        _define_virtual_attributes_hook(attribute)
       end
 
       private
 
+      def _define_virtual_attributes_hook(attribute)
+        define_method :attributes do |*args|
+          # Ensure attribute has been read
+          send(attribute)
+          super(*args)
+        end
+      end
+
       def _define_virtual_attribute_setter(attribute)
         define_method "#{attribute}=" do |value|
           set_virtual_attribute(attribute, value) if send(attribute) != value

app/services/relations/create_service.rb

@@ -35,8 +35,6 @@ class Relations::CreateService < Relations::BaseService
   end
 
   def call(relation, send_notifications: true)
-    initialize_contract! relation
-
     in_context(send_notifications) do
       update_relation relation, {}
     end