From 230700ee8161913ddbe0a77a26fcc3976cfeb451 Mon Sep 17 00:00:00 2001
From: Evgenii Stratonikov <evgeniy@nspcc.ru>
Date: Sat, 5 Sep 2020 10:50:08 +0300
Subject: [PATCH] core: do not persist Policy contract

It has nothing to persist.
---
 pkg/core/native/contract.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkg/core/native/contract.go b/pkg/core/native/contract.go
index 517a4f4ac..cb8323be6 100644
--- a/pkg/core/native/contract.go
+++ b/pkg/core/native/contract.go
@@ -57,6 +57,11 @@ func (cs *Contracts) GetPersistScript() []byte {
 	w := io.NewBufBinWriter()
 	for i := range cs.Contracts {
 		md := cs.Contracts[i].Metadata()
+		// Not every contract is persisted:
+		// https://github.com/neo-project/neo/blob/master/src/neo/Ledger/Blockchain.cs#L90
+		if md.ContractID == policyContractID {
+			continue
+		}
 		emit.Int(w.BinWriter, 0)
 		emit.Opcode(w.BinWriter, opcode.NEWARRAY)
 		emit.String(w.BinWriter, "onPersist")