Index pages use – but it can not be used in ePub #12359
Description
Describe the bug
Books.app shows "error on line 34 at column 29: Entity 'ndash' not defined" on index pages.
epubcheck shows
FATAL(RSC-016): build/epub/Python.epub/genindex-A.xhtml(34,29): Fatal Error while parsing file: The entity "ndash" was referenced, but not declared.
How to Reproduce
make venv && make epub in Doc/ folder in Python source tree.
Show build/epub/Python.epub with Books.app or epubcheck --locale en-US build/epub/Python.epub 2>python-epub-errors.txt
Environment Information
Platform: darwin; (macOS-14.4.1-arm64-arm-64bit) Python version: 3.12.2 (main, Feb 25 2024, 03:55:42) [Clang 17.0.6 ]) Python implementation: CPython Sphinx version: 7.3.7 Docutils version: 0.21.2 Jinja2 version: 3.1.4 Pygments version: 2.18.0 Sphinx extensions
No response
Additional context
No response