4.2.0 breaks keyring

We use keyring and over the last couple of days our app that uses keyring fails to start due to the stacktrace below.

Troubleshooting this issue, the problem is evident since the release of 4.2.0.

If I version lock jaraco.functools==4.1.0 (to avoid 4.2.0 with the above commit) keyring works as expected.

    import pkg_resources
  File "/usr/local/lib/python3.11/site-packages/pkg_resources/__init__.py", line 3259, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/pkg_resources/__init__.py", line 3234, in _call_aside
    f(*args, **kwargs)
  File "/usr/local/lib/python3.11/site-packages/pkg_resources/__init__.py", line 3272, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/pkg_resources/__init__.py", line 583, in _build_master
    return cls._build_from_requirements(__requires__)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/pkg_resources/__init__.py", line 596, in _build_from_requirements
    dists = ws.resolve(reqs, Environment())
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/pkg_resources/__init__.py", line 795, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'jaraco.functools' distribution was not found and is required by keyring 

For the record 'jaraco.functools' is present and installed and I can manually load it.

Seeing the same thing.