From a06912b5793787df769c2991270d86129d243349 Mon Sep 17 00:00:00 2001
From: Anton Kaliaev <anton.kalyaev@gmail.com>
Date: Mon, 17 Dec 2018 20:35:05 +0400
Subject: [PATCH] mempool: move tx to back, not front (#3036)

because we pop txs from the front if the cache is full

Refs #3035
---
 mempool/mempool.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mempool/mempool.go b/mempool/mempool.go
index c5f966c4e..3a1921bc2 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
 	}