From d8cd42e7298c39ebec5d591f9bed9860ad1e35b2 Mon Sep 17 00:00:00 2001
From: oldcold <jinliang.liu@hotmail.com>
Date: Tue, 30 Apr 2019 22:21:01 +0800
Subject: [PATCH] sort view change and producer vector before intersection.

---
 libraries/chain/pbft_database.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libraries/chain/pbft_database.cpp b/libraries/chain/pbft_database.cpp
index 6d6f7b4e575..b11afe061bb 100644
--- a/libraries/chain/pbft_database.cpp
+++ b/libraries/chain/pbft_database.cpp
@@ -786,6 +786,9 @@ namespace eosio {
             }
 
             vector<public_key_type> intersection;
+
+            std::sort(lib_producers.begin(),lib_producers.end());
+            std::sort(view_change_producers.begin(),view_change_producers.end());
             std::set_intersection(lib_producers.begin(),lib_producers.end(),
                                   view_change_producers.begin(),view_change_producers.end(),
                                   back_inserter(intersection));