Do not update `load_defaults` version when running `app:update` (#31951)

Incompatible settings are included in the settings set by `load_defaults`.
So, I think that target version should be updated by a user when becomes
available, and should not be updated with `app:update`.

1 files changed, 4 insertions, 1 deletions

diff --git a/railties/lib/rails/application/configuration.rb b/railties/lib/rails/application/configuration.rb
index 6743ab2a54..46ad3557e3 100644
--- a/railties/lib/rails/application/configuration.rb
+++ b/railties/lib/rails/application/configuration.rb
@@ -19,7 +19,7 @@ module Rails
                     :read_encrypted_secrets, :log_level, :content_security_policy_report_only,
                     :require_master_key
 
-      attr_reader :encoding, :api_only
+      attr_reader :encoding, :api_only, :loaded_config_version
 
       def initialize(*)
         super
@@ -58,6 +58,7 @@ module Rails
         @content_security_policy             = nil
         @content_security_policy_report_only = false
         @require_master_key                  = false
+        @loaded_config_version               = nil
       end
 
       def load_defaults(target_version)
@@ -118,6 +119,8 @@ module Rails
         else
           raise "Unknown version #{target_version.to_s.inspect}"
         end
+
+        @loaded_config_version = target_version
       end
 
       def encoding=(value)