Bypass callbacks for deactivating active source-files to avoid nested optimistic locking collapse under heavy multi instance load (MOC MSFT problem)

app/models/dunlop/source_file_model.rb

@@ -26,9 +26,7 @@ module Dunlop::SourceFileModel
   end
 
   def deactivate_loaded_source_file
-    self.class.find_each do |source_file|
-      source_file.inactive! if source_file.active?
-    end
+    self.class.active.update_all state: 'inactive'
   end
 
   def load_source_file