Looks like you are right, thanks for noticing. In fact, the second one also has additional content (which is advertised on the cover). I got confused because the first one also claimed to be the "extended edition" (only the second one is, so I fixed the error in the metadata).
https://www.goodreads.com/book/show/3...
https://www.goodreads.com/book/show/3...
Many thanks!