Defuddle omits normal main article sections from this page:

https://martinfowler.com/articles/harness-engineering.html

Reproduction

npx --yes defuddle parse https://martinfowler.com/articles/harness-engineering.html --markdown

Tested with Defuddle CLI 0.18.1.

Expected

Main-section headings should appear in the extracted Markdown, including:

• Feedforward and Feedback
• The role of the human

Actual

Those sections are omitted from the extracted Markdown.

The first dropped section is ordinary main article HTML, not a sidebar:

<section id="FeedforwardAndFeedback">
  <h2>Feedforward and Feedback</h2>
  ...
</section>

Sidebars on the page may be a separate readability decision. This issue is specifically about normal main article sections being removed.