======================================================================
ERROR: test_success (connection_test.FetchFileTest)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/runner/work/mitogen/mitogen/tests/ansible/tests/connection_test.py", line 135, in tearDown
self.conn.close()
File "/home/runner/work/mitogen/mitogen/ansible_mitogen/connection.py", line 913, in close
self.binding.close()
File "/home/runner/work/mitogen/mitogen/ansible_mitogen/process.py", line 366, in close
self.model.on_binding_close()
File "/home/runner/work/mitogen/mitogen/ansible_mitogen/process.py", line 547, in on_binding_close
mitogen.fork.on_fork()
File "/home/runner/work/mitogen/mitogen/mitogen/fork.py", line 97, in on_fork
mitogen.core.Side._on_fork()
File "/home/runner/work/mitogen/mitogen/mitogen/core.py", line 2337, in _on_fork
_, side = cls._fork_refs.popitem()
File "/home/runner/.pyenv/versions/3.6.15/lib/python3.6/weakref.py", line 255, in popitem
key, wr = self.data.popitem()
KeyError: 'popitem(): dictionary is empty'
https://github.com/mitogen-hq/mitogen/actions/runs/32865801950/job/97860639873
refs #1551