quoted

Here we also need to have

  git_config(submodule_config, NULL);

such that is_submodule_initialized works correctly,
I would assume?

No I don't think so.  is_submodule_initialized doesn't need them to be
overlayed, it just needs the .gitmodules mappings.

ok, thanks! I assumed it would need it later on, when e.g. looking at
"submodule.active" from the config.

Thanks,
Stefan