DefaultGameUserSettings.ini not functional anymore?

The behavior is quite confusing - can somebody explain under what circumstances settings actually appear in the end-user INI files?

For example, if I set scalability settings in my project’s DefaultGameUserSettings.ini then they are applied for the shipped game, but they do not show up in the end-user’s GameUserSettings.ini… but if I do not specify scalability settings in my DefaultGameUserSettings.ini then default values are set AND they show up in the user’s GameUserSettings.ini…

So how do we both specify the default values AND have those values show up in the user’s INI? (so they know where and how to change the settings)