Fix rails default format_version

Author: martinschaflitzl1

lib/active_type/marshalling.rb

@@ -20,7 +20,9 @@ module Marshalling
     #   serialized with format_version = 6.1 using _dump, will always load using _load, ignoring wherever marshal_load is defined or not.
     #   This ensures objects will always be deserialized with the method they were serialized with. We don´t need to worry about that.
 
-    module ActiveRecordExtension
+    class << self
+      attr_reader :format_version
+
       def format_version=(version)
         case version
         when 6.1
@@ -30,7 +32,13 @@ def format_version=(version)
         else
           raise ArgumentError, "Unknown marshalling format: #{version.inspect}"
         end
+        @format_version = version
+      end
+    end
 
+    module ActiveRecordMarshallingExtension
+      def format_version=(version)
+        ActiveType::Marshalling.format_version = version
         super(version)
       end
     end
@@ -49,4 +57,6 @@ def marshal_load(state)
   end
 end
 
-ActiveRecord::Marshalling.singleton_class.prepend(ActiveType::Marshalling::ActiveRecordExtension)
+ActiveRecord::Marshalling.singleton_class.prepend(ActiveType::Marshalling::ActiveRecordMarshallingExtension)
+# Set ActiveType´s format_version to ActiveRecord´s, in case ActiveRecord uses the default value, which is set before we are loaded.
+ActiveType::Marshalling.format_version = ActiveRecord::Marshalling.format_version