[openbsd] tests/test_regr1.py::TestIssue39Regr::test_issue39_regression hangs inifinitely

• uvloop version: 0.20.0
• Python version: 3.11.9
• Platform: OpenBSD
• Can you reproduce the bug with PYTHONASYNCIODEBUG in env?: Yes
• Does uvloop behave differently from vanilla asyncio? How?:

Output for testing that one test, but have to manually kill as there is no output in the logs or console:

===>  Regression tests for py3-uvloop-0.20.0
cd /usr/ports/pobj/py-uvloop-0.20.0-python3/uvloop-0.20.0 &&  env PYTHONASYNCIODEBUG=1 py.test -vvv tests/test_regr1.py
============================= test session starts ==============================
platform openbsd7 -- Python 3.11.9, pytest-8.2.0, pluggy-1.5.0 -- /usr/local/bin/python3.11
cachedir: .pytest_cache
rootdir: /usr/ports/pobj/py-uvloop-0.20.0-python3/uvloop-0.20.0
configfile: pyproject.toml
collecting ... collected 1 item

tests/test_regr1.py::TestIssue39Regr::test_issue39_regression ^C*** Signal SIGINT in . (/usr/ports/pobj/py-uvloop-0.20.0-python3/.test_done)
*** Error 1 in /usr/ports/devel/py-uvloop (/usr/ports/infrastructure/mk/bsd.port.mk:2704 'test': @lock=py3-uvloop-0.20.0;  export _LOCKS_HEL...)

Comienza con tests/test_regr1.py::TestIssue39Regr::test_issue39_regression y reprodúcelo en OpenBSD usando el comando pytest indicado con PYTHONASYNCIODEBUG=1. Compara el comportamiento con vanilla asyncio tal como se solicita en el issue y, a continuación, utiliza la prueba y su salida para identificar qué impide la terminación. Se considera completado cuando la prueba de regresión termina sin requerir una interrupción manual en el entorno indicado.