From a1ad592d31a14c674b9e44ab5fe1fe1358d03707 Mon Sep 17 00:00:00 2001
From: Marcos Magueta <maguetamarcos@gmail.com>
Date: Tue, 19 May 2026 00:31:13 -0300
Subject: CI: Fix windows build with API annotations

---
 src/MultigroupCodec.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src/MultigroupCodec.cpp')

diff --git a/src/MultigroupCodec.cpp b/src/MultigroupCodec.cpp
index 81d305c..3deaa23 100644
--- a/src/MultigroupCodec.cpp
+++ b/src/MultigroupCodec.cpp
@@ -2,6 +2,8 @@
 
 #include "Merkle.h"
 
+#include <map>
+
 namespace nt::MultigroupCodec
 {
     // A relation with zero tuples reports an empty merkle_root externally.
@@ -24,8 +26,12 @@ namespace nt::MultigroupCodec
     std::string Build(IStorageBackend& store,
                       const std::vector<RelationEntry>& relations)
     {
-        std::string root;
+        std::map<std::string, std::string> canonical;
         for (const auto& [name, root_hex] : relations)
+            canonical[name] = root_hex;
+
+        std::string root;
+        for (const auto& [name, root_hex] : canonical)
             root = nt::Merkle<std::string>::Insert(store, root, name,
                                                     encode_payload(root_hex));
         return root;
-- 
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