From 1735fa9f297a64eca82bcdefb5b182b2e453f685 Mon Sep 17 00:00:00 2001
From: Yeon-Hyeong Yang <lbird94@gmail.com>
Date: Mon, 8 Jun 2020 11:42:30 +0900
Subject: [PATCH] Fix saveRoot() to delete root node from recentDB

---
 nodedb.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/nodedb.go b/nodedb.go
index b28b6643d..852f427b3 100644
--- a/nodedb.go
+++ b/nodedb.go
@@ -767,9 +767,11 @@ func (ndb *nodeDB) saveRoot(hash []byte, version int64, flushToDisk bool) error
 
 	key := ndb.rootKey(version)
 	ndb.updateLatestVersion(version)
-	ndb.recentBatch.Set(key, hash)
 	if flushToDisk {
 		ndb.snapshotBatch.Set(key, hash)
+		ndb.recentBatch.Delete(key)
+	} else {
+		ndb.recentBatch.Set(key, hash)
 	}
 
 	return nil