Breaking change in 0.23.*

[tkukushkin]

Hello! Something has been broken with the latest pytest-asyncio releases.

Consider such code:

import asyncio
import pytest

@pytest.fixture(scope='session')
def event_loop():
    loop = asyncio.get_event_loop_policy().new_event_loop()
    yield loop
    loop.close()

@pytest.fixture(scope='session')
async def some_async_fixture():
    return asyncio.get_running_loop()

async def test_something(some_async_fixture):
    assert asyncio.get_running_loop() is some_async_fixture

pytest.ini:

[pytest]
asyncio_mode = auto

This test passes with pytest-asyncio 0.21.1 but fails with 0.23.0. I am not sure if it's ok, but if it is, IMHO it is breaking change.