Enable final Rails 7 default: belongs_to_required_validates_foreign_k…

…ey (#3797)

After this, we can version bump `config.load_defaults 7.0` to
`config.load_defaults 7.1` 🎉

config/initializers/new_framework_defaults_7_1.rb

@@ -173,8 +173,7 @@
 # The previous behavior was to validate the presence of the parent record, which performed an extra query
 # to get the parent every time the child record was updated, even when parent has not changed.
 #++
-# TODO: enable this one by itself, after the rest
-# Rails.application.config.active_record.belongs_to_required_validates_foreign_key = false
+Rails.application.config.active_record.belongs_to_required_validates_foreign_key = false
 
 ###
 # Enable precompilation of `config.filter_parameters`. Precompilation can