From b9c378007d43ebd3b05d4080c96e7b17d894cf6a Mon Sep 17 00:00:00 2001
From: celbalrai <80897309+celbalrai@users.noreply.github.com>
Date: Wed, 21 Apr 2021 16:19:16 +0200
Subject: [PATCH] Staking: set fixed accumulator checkpoint on new blocks

---
 src/miner.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/miner.cpp b/src/miner.cpp
index 891f2ce3ca1352..610f5ef33510d9 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -324,6 +324,8 @@ std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& sc
         UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev);
     pblock->nBits          = GetNextWorkRequired(pindexPrev, pblock, chainparams.GetConsensus());
     pblock->nNonce         = 0;
+    if (nHeight < chainparams.GetConsensus().ATPStartHeight)
+        pblock->nAccumulatorCheckpoint =  pindexPrev ? pindexPrev->nAccumulatorCheckpoint : uint256();
     pblocktemplate->nPrevBits = pindexPrev->nBits;
     pblocktemplate->vTxSigOps[0] = GetLegacySigOpCount(*pblock->vtx[0]);
     if (fPos)