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fix(chainfold): reject cursorless snapshots that carry a ring - #48
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🟡 Changes recommended
Update the mismatch error message to accurately describe cursorless snapshots.
Review effort: Lite
Findings: 1
Open (1)
What changed in this PR
Rejects cursorless snapshots containing ring entries to preserve cursor/ring consistency during decoding.
Changes:
- Enforces cursor/ring presence consistency.
- Adds regression coverage for malformed snapshots.
| File | Description |
|---|---|
crates/chainfold/src/snapshot.rs |
Updates snapshot validation and adds regression coverage; error wording should also cover cursorless cases. |
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oskarth
removed their request for review
September 29, 2026 03:17
cygnusv
approved these changes
Sep 29, 2026
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fixes #49
decode_snapshotvalidatedring.last() == cursor.blockonly forSomecursors. Acursorless envelope with ring entries decoded into an engine with
cursor = Noneand anon-empty ring, which no engine reaches. The first batch then set the cursor without
pushing its block, and every later batch failed with
CursorBlockUnobserved.