test_typing.test_awaitable raises a StopIteration with the DLR based async implementation

test_typing.test_awaitable (from the 3.6 test suite) raises a StopIteration with the DLR based async implementation. Here's a simplified version of the test. It should run to completion, but currently produces a StopIteration error (on .NET 8 and .NET 10).

class AwaitableWrapper:
    def __await__(self):
        yield
        return 42

def test_awaitable():
    async def foo():
        return await AwaitableWrapper()
    g = foo()
    g.send(None)

test_awaitable()

@BCSharp

Start by running the simplified test from test_typing.test_awaitable on the DLR-based async implementation under .NET 8 or .NET 10, and confirm the StopIteration failure. Trace the awaitable handling from that test through the DLR async implementation; done means the test runs to completion without raising StopIteration.