From c3faadf23fe89ff3a3c1dc35b504e0f16a49133e Mon Sep 17 00:00:00 2001
From: ThomasV <thomasv@electrum.org>
Date: Thu, 13 Feb 2025 11:01:03 +0100
Subject: [PATCH] If a transaction uses make_witness, also set script_sig.

Other methods (remove_signatures) may have set script_sig to None
during the lifetime of the tx object.
---
 electrum/wallet.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/electrum/wallet.py b/electrum/wallet.py
index 6cdc84c4e..921737c62 100644
--- a/electrum/wallet.py
+++ b/electrum/wallet.py
@@ -2611,6 +2611,7 @@ class Abstract_Wallet(ABC, Logger, EventListener):
                 self.logger.info(f'sign_transaction: adding witness using make_witness')
                 privkey = txin.privkey
                 sig = tx.sign_txin(i, privkey)
+                txin.script_sig = b''
                 txin.witness = txin.make_witness(sig)
                 assert txin.is_complete()