From 59aa060cd059cdbbde2b9c4be2d40ca837bdc6c4 Mon Sep 17 00:00:00 2001
From: Carles Fernandez <carles.fernandez@gmail.com>
Date: Thu, 2 Apr 2026 12:36:17 +0200
Subject: [PATCH] Fix broken multi signal conditioner configurations

---
 src/core/receiver/gnss_block_factory.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/core/receiver/gnss_block_factory.cc b/src/core/receiver/gnss_block_factory.cc
index 666c1953b..164e22d8c 100644
--- a/src/core/receiver/gnss_block_factory.cc
+++ b/src/core/receiver/gnss_block_factory.cc
@@ -226,7 +226,11 @@ auto findRole(const ConfigurationInterface* configuration, const std::string& ba
     // Current behavior: if there is no "Tag0" use "Tag" instead
     if (ID < 1 && !configuration->is_present(role + impl_prop))
         {
-            return base;  //  legacy format
+            const auto stub = configuration->property(role + impl_prop, ""s);
+            if (stub.empty())
+                {
+                    return base;
+                }
         }
 
     return role;