TL;DR –no-clean is dangerous

quarto render --no-clean ... (or an interrupted render?) created many .html.md files in the same dirs as their .qmd/.md sources:

papers/11-bank2011using/index.md               papers/23-hanig2023nlp/index.md
papers/11-hanig2011benefits/index.html.md      papers/23-tumler2023virtual/index.html.md
papers/11-hanig2011benefits/index.md           papers/23-tumler2023virtual/index.md
papers/11-hanig2011knowledge/index.html.md     papers/24-hamotskyi2024fincorpus/index.html.md
papers/

Then the custom listing for */*.md went crazy because the html.md files didn’t have the needed fields. (also .jsons/.html etc.)

Quarto has no quarto clean but one can just re-render everything without --no-clean

Fish globs

To find all these files arbitrarily many levels deep:

ls **/*.html.md