Expected one entry for (key), but found (N) entries.

[masuhar]

• When a piece of shortcode references izawa2025ecoop and there are entries keyed izawa2025ecoop and izawa2025ecoop-ae, we get the following warning.

[masuhar]

https://prg.is.titech.ac.jp/papers/bibindex.php?keys=izawa2025ecoop&bib=prg-e.bib;thesis-b.bib;thesis-m.bib;thesis-d.bib;prg-j.bib

This URL already breaks. So it is not a problem of the shortcode but rather the problem of bibtexbrowser.