PASS: shared config transaction rejects client writes, preserves first-save/prior/fallback state across open, write, backup, partial-copy, readback and mismatch failures
PASS: actual Save/Commit preserves semantically valid backup across unrelated menu edits and repairs; unknown fields/default sections retained; actual terrain parser; other parsers, catalog and disk doubled
Traceback (most recent call last):
  File "/tmp/erri-crash-root-1852/run-frozen-suite.py", line 33, in <module>
    try:module.check()
        ~~~~~~~~~~~~^^
  File "/tmp/erri-crash-root-1852/frozen-source/tools/check.py", line 11, in check
    subprocess.run([sys.executable,str(ROOT/'tests/test_profile_config.py')],check=True)
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/erri-crash-root-1852/run-frozen-suite.py", line 28, in track
    for name in json.loads((B/"historical-fixture-inputs.json").read_text()): result[name]=sha(R/name)
                                                                              ~~~~~~^^^^^^
TypeError: 'CompletedProcess' object does not support item assignment
Suite exit 1 programs 1 unchanged True