Per https://news.ycombinator.com/item?id=32630551 https://news.ycombinator.com/item?id=32630551, this is a about a very specific scenario which GitHub happens

Per https://news.ycombinator.com/item?id=32630551 https://news.ycombinator.com/item?id=32630551, this is a about a very specific scenario which GitHub happens to handle out-of-the-box (but awkwardly), and which GDoc doesn't (but perhaps could with scripting).