Test page
This is a paragraphs with just one line between them. I thought the paragraph spacing can be declared differently that line spacing, and I thought I saw that behavior in basic card content before.
This is another paragraph, and another ...
one here.
Discussion:
This is paragraphs in a comment, I think that it doesn't have the extra spacing. I don't think it matters whether the lines wrap at all, but it may. A bit more text in the first para.
A second one
and A third.