reload doesn't work from programmatic launch (asyncio)

[SamuelMarks]

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Description

reload doesn't work

Example Code

Given something simple like:

async def serve(reload=True):
    reload_dirs = [path.dirname(__file__)] if reload else None
    config = uvicorn.Config(
        "main:app",
        log_level="info",
        port=4000,
        reload=reload,
        reload_dirs=reload_dirs,
        reload_includes=reload_dirs,
    )
    server = uvicorn.Server(config)
    await server.serve()


if __name__ == "__main__":
    asyncio.run(serve())

Output looks good, but it never reloads, e.g., when I change a route's return value:

INFO:     Will watch for changes in these directories: ['/tmp/myapp']
INFO:     Started server process [20312]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://localhost:4000 (Press CTRL+C to quit)

Python, Uvicorn & OS Version

Running uvicorn 0.23.2 with CPython 3.12.0 on Linux

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