Found when building documentation for python-PyMuPDF:

Could not import extension rst2pdf.pdfbuilder (exception: cannot import name 'versionlabels' from 'sphinx.locale' (/usr/lib/python3.12/site-packages/sphinx/locale/__init__.py))

Version 0.97 which we have in Fedora, doesn't support this Sphinx version.
This has been mitigated upstream, with the latest released version being 0.101 so a simple rebase might help.

Reproducible: Always

Steps to Reproduce:
Try to build python-PyMuPDF locally in mock:

Test locally in mock: 
$ mock -r fedora-rawhide-x86_64 --addrepo=https://download.copr.fedorainfracloud.org/results/ksurma/sphinx-7.1.2/fedora-rawhide-x86_64/ --no-clean your.src.rpm
$ mock -r fedora-rawhide-x86_64 --addrepo=https://download.copr.fedorainfracloud.org/results/ksurma/sphinx-7.1.2/fedora-rawhide-x86_64/ shell