From 55325c9b8bece3c196ea2038daf800928229ccb4 Mon Sep 17 00:00:00 2001
From: jp1ac4 <121959000+jp1ac4@users.noreply.github.com>
Date: Thu, 4 Jul 2024 10:35:26 +0100
Subject: [PATCH] gui: fix displayed feerate estimate

---
 gui/src/daemon/model.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/gui/src/daemon/model.rs b/gui/src/daemon/model.rs
index 01513b01e..bc1d315bf 100644
--- a/gui/src/daemon/model.rs
+++ b/gui/src/daemon/model.rs
@@ -64,7 +64,14 @@ impl SpendTx {
         secp: &secp256k1::Secp256k1<impl secp256k1::Verification>,
         network: Network,
     ) -> Self {
-        let max_vbytes = desc.unsigned_tx_max_vbytes(&psbt.unsigned_tx, false);
+        // Use primary path if no inputs are using a relative locktime.
+        let use_primary_path = !psbt
+            .unsigned_tx
+            .input
+            .iter()
+            .map(|txin| txin.sequence)
+            .any(|seq| seq.is_relative_lock_time());
+        let max_vbytes = desc.unsigned_tx_max_vbytes(&psbt.unsigned_tx, use_primary_path);
         let change_indexes: Vec<usize> = desc
             .change_indexes(&psbt, secp)
             .into_iter()