Separate or not?

[Ellie]

I was wondering how far to take the "different but same" combining rule in case of the first and second editions of "Tessa and Scott: Our Journey from Childhood Dream to Gold" (see linked work).

The first edition (black one) is from 2010 and ends after the Winter Olympics of 2010, the second edition (white one) is from 2018, has three more chapters (192 vs 224 pages) and includes everything up to as well as the Winter Olympics of 2018.

So in my opinion, those are two different works, therefore I wanted to ask whether I'm allowed to separate them or whether they are nevertheless considered one and the same by GR standards.

[lethe]

I'd say they should remain combined. Later editions of non-fiction works are often enlarged.