This is an MVCE for a bug in autoclasstoc. When using the extension with Sphinx 7.4.0 or higher (including Sphinx 8.0.2, the current version at time of writing), warnings of the following form are emitted despite the documented code not referring to the current module:

WARNING: Summarised items should not include the current module. Replace 'mypackage.Foo.__init__' with '__init__'. [autosummary.import_cycle]

To run this MVCE, install tox and run tox -e docs.

The bug report is at kalekundert/autoclasstoc#39.