Fix broken count statements in ActiveRecord 8.0

Author: jukra

lib/mobility/plugins/active_record/query.rb

@@ -172,7 +172,7 @@ def order(opts, *rest)
                 base = keys.each_with_index.inject(self) do |query, (key, index)|
                   next query unless klass.mobility_attribute?(key)
                   keys[index] = backend_node(key)
-                  if method_name == "select"
+                  if method_name == "select" && query.order_values.any?
                     keys[index] = keys[index]
                       .as(::Mobility::Plugins::ActiveRecord::Query.attribute_alias(key.to_s))
                   end