From 7e164d2ec355a280793f4651e2bee00e39c41341 Mon Sep 17 00:00:00 2001
From: "nicolas.dorier" <nicolas.dorier@gmail.com>
Date: Mon, 13 May 2019 08:21:54 +0900
Subject: [PATCH] make sure we don't sign same input twice

---
 BTCPayServer/Services/LedgerHardwareWalletService.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/BTCPayServer/Services/LedgerHardwareWalletService.cs b/BTCPayServer/Services/LedgerHardwareWalletService.cs
index 798509b5d..653ed8822 100644
--- a/BTCPayServer/Services/LedgerHardwareWalletService.cs
+++ b/BTCPayServer/Services/LedgerHardwareWalletService.cs
@@ -129,6 +129,7 @@ namespace BTCPayServer.Services
             var signatureRequests = psbt
                 .Inputs
                 .HDKeysFor(rootFingerprint, accountKey)
+                .Where(hd => !hd.Coin.PartialSigs.ContainsKey(hd.PubKey)) // Don't want to sign something twice
                 .GroupBy(hd => hd.Coin)
                 .Select(i => new SignatureRequest()
                 {