ban2st

@Gatherer sorry, moved my post to the other related issue https://github.com/sphinx-doc/sphinx/issues/11474 as I think it fits there better after re-reading your issue (as you also stated)

Hi, I dug into this and actually uncovered what's causing the issue (at least I think so): After all documents have been read, the `Builder.build` method is invoking the `BuildEnvironment.check_dependents`...