Excerpts as their own entries?

[Jericho]

This is something I've seen a couple of times: an excerpt or sneak peek of a book has its own listing separate from the full book.

One I just found is this preview (https://www.goodreads.com/book/show/1...) for this book (https://www.goodreads.com/book/show/7...).

I looked at the lists of what items are and are not considered books on Goodreads, but couldn't find this sort of thing on either list.
And the sneak peek bit has its own ISBN/ASIN, which made me think, okay, that's why it's its own entry. But then I saw that other language editions of the full book are listed as editions of the excerpt, which cannot possibly be right, so. I'm stumped.

[Scott]

If it is "sold" with an ISBN or ASIN it is valid, but it should not be combined with the full work.

[Jericho]

In that case, the "More Editions" in the excerpt I linked above needs to be fixed, because a couple of editions of the full book are currently listed as different editions of the excerpt.

[Scott]

Sorry, I thought I was in the Questions folder for librarians. Done.