+ end
+
+ # The ActiveModel::Dirty API was changed on Rails 5.2
+ # See: https://github.com/rails/rails/commit/c3675f50d2e59b7fc173d7b332860c4b1a24a726#diff-aaddd42c7feb0834b1b5c66af69814d3
+ def mutations_from_database
+ @mutations_from_database ||= ActiveModel::NullMutationTracker.instance
+ end