From 918f29a6d18eb399a4888efa02595c35e130b7a8 Mon Sep 17 00:00:00 2001
From: Miod Vallat <miod.vallat@powerdns.com>
Date: Fri, 25 Jul 2025 12:34:23 +0200
Subject: [PATCH] Build the DNSName in order in keyUnconv.

Signed-off-by: Miod Vallat <miod.vallat@powerdns.com>
---
 modules/lmdbbackend/lmdbbackend.cc | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/modules/lmdbbackend/lmdbbackend.cc b/modules/lmdbbackend/lmdbbackend.cc
index 769e1a3ad..d1e5e162c 100644
--- a/modules/lmdbbackend/lmdbbackend.cc
+++ b/modules/lmdbbackend/lmdbbackend.cc
@@ -1469,10 +1469,11 @@ static DNSName keyUnconv(std::string& instr)
 
   DNSName tmp;
 
-  for (auto const& label : labels) {
-    tmp.appendRawLabel(label);
+  while (!labels.empty()) {
+    tmp.appendRawLabel(labels.back());
+    labels.pop_back();
   }
-  return tmp.labelReverse();
+  return tmp;
 }
 
 static std::string makeBadDataExceptionMessage(const std::string& where, std::exception& exc, MDBOutVal& key, MDBOutVal& val)
-- 
2.47.2