asyncio call graph is truncated at async generators #160837

import asyncio

fut = None

async def deep():
    await fut

async def gen():
    await deep()
    yield 1

async def consumer():
    async for _ in gen():
        pass

async def main():
    global fut
    fut = asyncio.get_running_loop().create_future()
    t = asyncio.create_task(consumer(), name='consumer')
    for _ in range(5):
        await asyncio.sleep(0)
    asyncio.print_call_graph(t)
    fut.set_result(None)
    await t

asyncio.run(main())