coroutine proxies get destroyed too early

[saraedum]

When setup() returns a coroutine, our vue_compatible tries to create a proxy for it. However, that proxy is not functional:

PythonError: pyodide.JsException: Error: Object has already been destroyed
The object was of type "coroutine" and had repr "<coroutine object setup.<locals>.fetch_data at 0x112ad68>"

It is unclear why this is happening. We are explicitly calling create_proxy which should make sure that the proxy does not get deleted but it does not seem to work. Probably this is a bug in pyodide.

An example where this happens is step10.py from the tutorials.