index: Fix for indexers skipping genesis block.

2 files changed, 8 insertions, 1 deletions

diff --git a/src/index/base.cpp b/src/index/base.cpp
index 788f7adccd..3cf2a89a2d 100644
--- a/src/index/base.cpp
+++ b/src/index/base.cpp
@@ -60,7 +60,11 @@ bool BaseIndex::Init()
     }
 
     LOCK(cs_main);
-    m_best_block_index = FindForkInGlobalIndex(chainActive, locator);
+    if (locator.IsNull()) {
+        m_best_block_index = nullptr;
+    } else {
+        m_best_block_index = FindForkInGlobalIndex(chainActive, locator);
+    }
     m_synced = m_best_block_index.load() == chainActive.Tip();
     return true;
 }
diff --git a/src/index/txindex.cpp b/src/index/txindex.cpp
index c85030e18e..224004ce1c 100644
--- a/src/index/txindex.cpp
+++ b/src/index/txindex.cpp
@@ -245,6 +245,9 @@ bool TxIndex::Init()
 
 bool TxIndex::WriteBlock(const CBlock& block, const CBlockIndex* pindex)
 {
+    // Exclude genesis block transaction because outputs are not spendable.
+    if (pindex->nHeight == 0) return true;
+
     CDiskTxPos pos(pindex->GetBlockPos(), GetSizeOfCompactSize(block.vtx.size()));
     std::vector<std::pair<uint256, CDiskTxPos>> vPos;
     vPos.reserve(block.vtx.size());