<a> inside <a>

[eric-muller]

 [java] ERROR(RSC-005): results/000459/10_melanges_de_litterature.epub/OEBPS/content-table.xhtml(33,180): Error while parsing file: The a element must not appear inside a elements.

I can understand how inside warrant an error (and even that is not entirely clear), but in my case, it's inside : the is for a page boundary, and the is for an entry in a table of content, said entry spanning two pages; see pages 466/467 at https://gallica.bnf.fr/ark:/12148/bpt6k2026528/f465.item for an actual book. That seems a perfectly fine use of nested .