From 514867c5d9ef4f971c630b24fdb664a9dd59b665 Mon Sep 17 00:00:00 2001
From: Sami <sami@cryptographic-triangles.org>
Date: Mon, 15 Jun 2026 16:07:23 -0700
Subject: [PATCH] wallet(HD): flush keypool on seed set so getnewaddress yields
 HD keys immediately

---
 src/wallet.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/wallet.cpp b/src/wallet.cpp
index ff4a197..2b7d0a8 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -2935,6 +2935,9 @@ bool CWallet::SetHDSeed(const std::string& mnemonicIn, const std::string& passph
         }
         wdb.WriteHDChain(nHDChainIndex);
     }
+    // Replace any pre-existing (random) keypool with HD-derived keys so that
+    // getnewaddress immediately hands out deterministic m/44'/2222'/0'/0/i keys.
+    NewKeyPool();
     mnemonicOut = m;
     return true;
 }