P.S. Please don't use 80 columns in the summaries or elsewhere. I updated the summary, guessing it forced wrapping after you added the link.
Nah, that's my habit of starting a newline after most punctuation to make LaTeX and Markdown easier on version control. In Markdown/Commonmark it shouldn't be rendered as a line break, but it seems like it is rendered in Phabricator's dialect. 😞
I'll keep it in mind next time!