From 30797717dfa7d627d4be06467bf6d2da89b95f80 Mon Sep 17 00:00:00 2001
From: HaoyangLiu <lhy.0318@163.com>
Date: Wed, 6 Mar 2019 14:28:52 +0800
Subject: [PATCH] Add latest tx to the back of cache list, in case of being
 removed by other tx insertion

---
 mempool/mempool.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mempool/mempool.go b/mempool/mempool.go
index c5f966c4ef0..3a1921bc21d 100644
--- a/mempool/mempool.go
+++ b/mempool/mempool.go
@@ -676,7 +676,7 @@ func (cache *mapTxCache) Push(tx types.Tx) bool {
 	// Use the tx hash in the cache
 	txHash := sha256.Sum256(tx)
 	if moved, exists := cache.map_[txHash]; exists {
-		cache.list.MoveToFront(moved)
+		cache.list.MoveToBack(moved)
 		return false
 	}