From 95e42c87e39a5c12c53300b683a590cf4c3caad5 Mon Sep 17 00:00:00 2001
From: Otto <otto.moerbeek@open-xchange.com>
Date: Wed, 6 Oct 2021 10:37:28 +0200
Subject: [PATCH] Minimal backport of #10632: match ordering of PacketID using
 the Birtdah vs non-Birtday comparator

---
 pdns/syncres.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pdns/syncres.hh b/pdns/syncres.hh
index f10c82de25..56f4bb07d6 100644
--- a/pdns/syncres.hh
+++ b/pdns/syncres.hh
@@ -974,7 +974,7 @@ struct PacketID
     if( tie(remote, ourSock, type) > tie(b.remote, bSock, b.type))
       return false;
 
-    return tie(fd, id, domain) < tie(b.fd, b.id, b.domain);
+    return tie(domain, fd, id) < tie(b.domain, b.fd, b.id);
   }
 };
 
-- 
2.47.2