From 7b02673620cd40378b09ceb9a76e4a21c16a9077 Mon Sep 17 00:00:00 2001
From: vyzo <vyzo@hackzen.org>
Date: Wed, 16 Jun 2021 18:26:04 +0300
Subject: [PATCH] don't try to visit genesis parent blocks

---
 blockstore/splitstore/splitstore.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/blockstore/splitstore/splitstore.go b/blockstore/splitstore/splitstore.go
index 2532413db..660823762 100644
--- a/blockstore/splitstore/splitstore.go
+++ b/blockstore/splitstore/splitstore.go
@@ -892,7 +892,9 @@ func (s *SplitStore) walk(ts *types.TipSet, boundary abi.ChainEpoch, inclMsgs bo
 			}
 		}
 
-		toWalk = append(toWalk, hdr.Parents...)
+		if hdr.Height > 0 {
+			toWalk = append(toWalk, hdr.Parents...)
+		}
 		return nil
 	}