Jean-François B.

Certainly you are right that #10673 makes your expectation fully legit! I was not aware of it, and as the `latex`, `man`, `singlehtml` and `texinfo` raise warnings in such circumstances,...

These roles and directives are provided by https://github.com/mcmtroffaes/sphinxcontrib-bibtex, not by core Sphinx. Although the problem could be in Sphinx core code, it may be a deficiency of the sphinxcontrib.bibtex extension....

Sorry for eavesdropping but only to say I used a lot such constructs in xintexpr. This is only to confirm they are useful... although this was not using LaTeX3 and...