If a test raises an ExceptionGroup (or nested ExceptionGroups) with only a single 'leaf' exception from pytest.xfail() or pytest.skip(), we now unwrap it to have the desired effect on Pytest. ExceptionGroups with two or more leaf exceptions, even of the same type, are not changed and will be treated as ordinary test failures.
See pytest-dev/pytest#9680 for design discussion. This feature is particularly useful if you've enabled the new strict_exception_groups=True option.