Behaviour-preserving cleanup of the salvaged fix:
- reset_statuses goes back to replace(e, **_CLEAR_STATUS, ...) instead of
re-spelling the six status fields; every other clear site uses the
constant, so a seventh field would otherwise drift here. The
count/new_entries/cleared_ids trio collapses to the original stale-list
shape, and entry.failure_reason is read through the dataclass's
__getattr__ like the rest of the module.
- Both bypass sites (write_credential_pool, _update_root_pool_rows) pass
disk_entry=None to _merge_disk_cooldown_state for a cleared id instead of
adding a parallel branch; the helper already returns the entry unchanged
for a missing disk row.
- The cleared-id set in _update_root_pool_rows is built once, not per disk
row (an Iterable argument would also have been drained on the first row).
- persist_pool_entries passes status_cleared_ids plainly; the kwargs splat
existed only for one test fake, which now accepts the kwarg.
- Docstrings trimmed to the WHY.
Same 116 targeted tests green; reverting the two source files to main still
fails the two regression tests and passes the guard test.
kshitijk4poor
52cf39c908