From 9916832e2e46fe54dfbee1992cdb8b591af9ab16 Mon Sep 17 00:00:00 2001
From: Roman Khimov <roman@nspcc.ru>
Date: Mon, 22 Aug 2022 13:38:43 +0300
Subject: [PATCH] core: set Tx for interop.Context when verifying witnesses

Notary contract uses it in the verification context and it's not harmful to
have it always be there when it's there.
---
 pkg/core/blockchain.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkg/core/blockchain.go b/pkg/core/blockchain.go
index 17fb7b3db..d47c618bb 100644
--- a/pkg/core/blockchain.go
+++ b/pkg/core/blockchain.go
@@ -2337,6 +2337,9 @@ func (bc *Blockchain) InitVerificationContext(ic *interop.Context, hash util.Uin
 func (bc *Blockchain) VerifyWitness(h util.Uint160, c hash.Hashable, w *transaction.Witness, gas int64) (int64, error) {
 	ic := bc.newInteropContext(trigger.Verification, bc.dao, nil, nil)
 	ic.Container = c
+	if tx, ok := c.(*transaction.Transaction); ok {
+		ic.Tx = tx
+	}
 	return bc.verifyHashAgainstScript(h, w, ic, gas)
 }