Thanks. Can you explain why that might be a good thing? If I update the diff, does it become a new reviewable item, independent from the first version? I've n

Thanks. Can you explain why that might be a good thing? If I update the diff, does it become a new reviewable item, independent from the first version? I've never worked at a large tech company but my understanding is that at e.g. google there is some sort of monorepo, so it would presumably zoom forwards while a commit is under review. Even so, why is it not a good thing to review the commit in an explicit location in the historical commit graph?