I’ve always liked how when you duplicate a section without a custom name, it increments the numbers automatically. For example, if you have Sections 1, 2, 3, 4 and you hit the button to duplicate Section 2, it inserts the new section as #3, and increments the rest of the numbers by 1.
However, it looks like if you duplicate one of the new rows, it simply clones the name over.
For example, in this example I created rows 1 and 2 by clicking the + at the section level, but then I duplicated Row 2 a few times. Then, Row 9 was created by clicking the + button again.

So, it looks like newly created rows behave as expected, but any of the rows that were duplicated keep exactly the same name as the original.