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Bugfix for Byron deserialization of Ledger Tables #1577

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Merged
merged 1 commit into from
Jul 2, 2025
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Bugfix for Byron deserialization of Ledger Tables #1577

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3 changes: 3 additions & 0 deletions ouroboros-consensus-cardano/changelog.d/byron-bugfix.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
### Patch

- Fix LedgerTables deserialization for Byron snapshots.
3 changes: 2 additions & 1 deletion ...s-consensus-cardano/src/ouroboros-consensus-cardano/Ouroboros/Consensus/Cardano/Ledger.hs
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Expand Up @@ -220,7 +220,8 @@ instance
( Fn $
const $
Comp $
K . LedgerTables @(LedgerState (HardForkBlock (CardanoEras c))) . ValuesMK <$> pure Map.empty
K . LedgerTables @(LedgerState (HardForkBlock (CardanoEras c))) . ValuesMK
<$> (Codec.CBOR.Decoding.decodeMapLen >> pure Map.empty)
)
:* (Fn $ Comp . fmap K . getOne ShelleyTxOut . unFlip . currentState)
:* (Fn $ Comp . fmap K . getOne AllegraTxOut . unFlip . currentState)
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