[Bug] Compact lines don't work anymore in custom roadmap with dots

What is the challenge?

• Since middle of summer, in my custom roadmap with dots (not bars), the compact lines don't work anymore. There's always 1 line per item (feature)

What is the impact?

• Unpractical roadmap browsing

• Side effect: when I add my roadmap to a presentation, it becomes very diffcult to review the roadmap in the presentation slide and the pdf export of the presentation truncates the roadmap

Describe your idea.

• Please fix it :) (sorry I did not find how to file a bug)