python-async-generator fails to build with Python 3.12.0a5.

=================================== FAILURES ===================================
______________________ test_aclose_on_unstarted_generator ______________________

    async def test_aclose_on_unstarted_generator():
        aiter = close_me_aiter([None])
        await aiter.aclose()
>       async for obj in aiter:

async_generator/_tests/test_async_generator.py:313: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
async_generator/_impl.py:366: in step
    return await ANextIter(self._it, start_fn, *args)
async_generator/_impl.py:197: in __next__
    return self._invoke(first_fn, *first_args)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <async_generator._impl.ANextIter object at 0x7f76798f9df0>
fn = <method-wrapper '__next__' of coroutine_wrapper object at 0x7f76798f9ed0>
args = ()

    def _invoke(self, fn, *args):
        try:
>           result = fn(*args)
E           RuntimeError: cannot reuse already awaited coroutine

async_generator/_impl.py:209: RuntimeError
=============================== warnings summary ===============================
async_generator/_tests/test_async_generator.py: 31 warnings
async_generator/_tests/test_util.py: 14 warnings
  /builddir/build/BUILD/async_generator-1.10/async_generator/_impl.py:209: DeprecationWarning: the (type, exc, tb) signature of throw() is deprecated, use the single-arg signature instead.
    result = fn(*args)

async_generator/_tests/test_util.py::test_native_contextmanager_do_not_unchain_non_stopiteration_exceptions
async_generator/_tests/test_util.py::test_native_contextmanager_do_not_unchain_non_stopiteration_exceptions
async_generator/_tests/test_util.py::test_native_contextmanager_do_not_unchain_non_stopiteration_exceptions
  /builddir/build/BUILD/async_generator-1.10/async_generator/_util.py:53: DeprecationWarning: the (type, exc, tb) signature of athrow() is deprecated, use the single-arg signature instead.
    await self._agen.athrow(type, value, traceback)

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
=========================== short test summary info ============================
FAILED async_generator/_tests/test_async_generator.py::test_aclose_on_unstarted_generator
================== 1 failed, 42 passed, 48 warnings in 0.21s ===================

https://docs.python.org/3.12/whatsnew/3.12.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.12/fedora-rawhide-x86_64/05573809-python-async-generator/

For all our attempts to build python-async-generator with Python 3.12, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.12/package/python-async-generator/

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.12:
https://copr.fedorainfracloud.org/coprs/g/python/python3.12/

Let us know here if you have any questions.

Python 3.12 is planned to be included in Fedora 39. To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.12.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.