Traceback (most recent call last):
  File "C:\Users\decid\Documents\projects\spt-core\.spt\preserved\314\confirmation-fixture\confirm.py", line 260, in main
    receipt["result"] = rig.trial()
                        ^^^^^^^^^^^
  File "C:\Users\decid\Documents\projects\spt-core\.spt\preserved\314\confirmation-fixture\confirm.py", line 228, in trial
    base.require(len(census["descendant_pids"]) == expected_count, "unexpected descendant topology")
  File "C:\Users\decid\Documents\projects\spt-core\.spt\preserved\314\confirmation-fixture\owned_base.py", line 34, in require
    raise RuntimeError(message)
RuntimeError: unexpected descendant topology