From f78a9cd9077d1217a7b4d27c16df9d5a90c06750 Mon Sep 17 00:00:00 2001
From: woodser <woodser@protonmail.com>
Date: Mon, 4 Sep 2023 11:08:37 -0400
Subject: [PATCH] remove signed offers with common key images

---
 core/src/main/java/haveno/core/offer/OpenOfferManager.java | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/core/src/main/java/haveno/core/offer/OpenOfferManager.java b/core/src/main/java/haveno/core/offer/OpenOfferManager.java
index d82da024..a792a417 100644
--- a/core/src/main/java/haveno/core/offer/OpenOfferManager.java
+++ b/core/src/main/java/haveno/core/offer/OpenOfferManager.java
@@ -764,6 +764,13 @@ public class OpenOfferManager implements PeerManager.Listener, DecryptedDirectMe
     private void addSignedOffer(SignedOffer signedOffer) {
         log.info("Adding SignedOffer offer for offer {}", signedOffer.getOfferId());
         synchronized (signedOffers) {
+
+            // remove signed offers with common key images
+            for (String keyImage : signedOffer.getReserveTxKeyImages()) {
+                removeSignedOffers(keyImage);
+            }
+
+            // add new signed offer
             signedOffers.add(signedOffer);
             signedOfferKeyImagePoller.addKeyImages(signedOffer.getReserveTxKeyImages());
         }