From 68b9a70a604ea7574f4aa1bb76b3938e9ceee953 Mon Sep 17 00:00:00 2001
From: Henry de Valence <hdevalence@hdevalence.ca>
Date: Tue, 27 Oct 2020 14:55:46 -0700
Subject: [PATCH] state: skip transactions in a genesis block

---
 zebra-state/src/sled_state.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/zebra-state/src/sled_state.rs b/zebra-state/src/sled_state.rs
index cc8700c7..dc31216e 100644
--- a/zebra-state/src/sled_state.rs
+++ b/zebra-state/src/sled_state.rs
@@ -243,6 +243,12 @@ impl FinalizedState {
 
                     // TODO: sprout and sapling anchors (per block)
 
+                    // Consensus-critical bug in zcashd: transactions in the
+                    // genesis block are ignored.
+                    if block.header.previous_block_hash == block::Hash([0; 32]) {
+                        return Ok(hash);
+                    }
+
                     // Index each transaction
                     for transaction in block.transactions.iter() {
                         let transaction_hash = transaction.hash();