Deduplicate cached Cashu proofs#73
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Keep the in-memory proofs cache aligned with the KV store's one-proof-per-Y invariant when proofs are re-added. Replacing cached entries prevents retries or recovery replays from duplicating proofs and inflating reported balances or proof enumeration results.
thesimplekid
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May 19, 2026
| // Match the KV store's proof_<Y> uniqueness by replacing cached entries with | ||
| // the same Y before appending the updated proof data. | ||
| cache.retain(|proof| !added_ys.contains(&proof.y)); | ||
| cache.extend(added); |
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To fully protect from duplicates we could de-duplicate the added vec, though cdk should not attempt to add duplicate proofs like this anyway so maybe not needed.
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Keep the in-memory proofs cache aligned with the KV store's one-proof-per-Y invariant when proofs are re-added. Replacing cached entries prevents retries or recovery replays from duplicating proofs and inflating reported balances or proof enumeration results.