Updating Python function apps is broken

I am using `func` version `4.0.5455` running on Ubuntu 22.04. I have managed to publish a Python function to a function app via `func azure functionapp publish my-function-app`. But when I make local modifications and try to run this command again if fails with "Response status code does not indicate success: 404 (Site Not Found)".

Start at the `func azure functionapp publish my-function-app` entry point and reproduce the second publish after a local Python modification using func 4.0.5455 on Ubuntu 22.04. Compare the initial successful publish with the failing update and verify that repeated publishing completes without the 404 Site Not Found response.

Written by the indexing model from the issue text.