DVDFab forced subtitles

Can someone explain what dvdfab does with forced subtitles please?

I have used dvd2one in the past, it tells you what stream if forced so you can choose to back that up as well. Althought dvd2one use to change the UOP’s so it did not force them on, but i had a get around for this.

How does dvdfab handle forced subs, does it automatically copy them and force them on again in the final backup?