From ff6aa0fd45341638ac39b5a49809e2810618ea29 Mon Sep 17 00:00:00 2001
From: Anna Shaleva <shaleva.ann@nspcc.ru>
Date: Tue, 29 Sep 2020 16:38:59 +0300
Subject: [PATCH] core: allow empty callingScriptHash during CheckWitness

CallingScriptHash can be empty in the entry transaction script.
---
 pkg/core/interop/runtime/witness.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkg/core/interop/runtime/witness.go b/pkg/core/interop/runtime/witness.go
index d721990c5..ae9e18b31 100644
--- a/pkg/core/interop/runtime/witness.go
+++ b/pkg/core/interop/runtime/witness.go
@@ -36,7 +36,7 @@ func checkScope(d dao.DAO, tx *transaction.Transaction, v *vm.VM, hash util.Uint
 			if c.Scopes&transaction.CalledByEntry != 0 {
 				callingScriptHash := v.GetCallingScriptHash()
 				entryScriptHash := v.GetEntryScriptHash()
-				if callingScriptHash == entryScriptHash {
+				if callingScriptHash.Equals(util.Uint160{}) || callingScriptHash == entryScriptHash {
 					return true, nil
 				}
 			}