Shot: https://commons.wikimedia.org/w/index.php?title=File:Bug-in-subheadings-ASCII-62.png
Link: https://eo.wikipedia.org/w/index.php?title=Vikipedio:Alinomendaj_artikoloj&oldid=8650474#Adolf_Hitler_%E2%86%92_Adolfo_Hitlero_kaj_Vladimir_Putin_%E2%86%92_Vladimiro_Putino

A new bug was introduced recently 2024-03-02 at ca 16:00 UTC visible on Esperanto wikipedia and Indonesian wikipedia, but not (yet) on Swedish wiktionary. The greater-than sign > breaks wiki subheadings. The less-than sign surprisignly does not have the same effect.