??? white-space: pre-wrap needs clarification. According to CSS Text Module Level 3, content wrapping is as 'normal' but apparently we need to keep the overlapping whitespace on the line (and hang it I'd assume).
Created attachment 382677 [details]
Comment on attachment 382677 [details]
Clearing flags on attachment: 382677
Committed r251972: <https://trac.webkit.org/changeset/251972>
All reviewed patches have been landed. Closing bug.