repo.save() and repo.findById() does not work within the save reactive pipeline

Can anyone help me with this, please?  It's a very simple test which does not work for me.  I posted it [HERE](https://stackoverflow.com/questions/79635897/repo-save-and-repo-findbyid-does-not-work-within-the-save-reactive-pipeline)  in stackoverflow.com but no responses yet.

Thanks!