From 1097b519ae5d67f8f58a2a6ff87213c17bd5106e Mon Sep 17 00:00:00 2001
From: MichaelDvP <github@mdvp.de>
Date: Thu, 2 Nov 2023 07:34:57 +0100
Subject: [PATCH] do not overwrite mqtt-json items

---
 src/emsdevice.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/emsdevice.cpp b/src/emsdevice.cpp
index 2e48ecfaa..5122efb44 100644
--- a/src/emsdevice.cpp
+++ b/src/emsdevice.cpp
@@ -1595,7 +1595,10 @@ bool EMSdevice::generate_values(JsonObject & output, const uint8_t tag_filter, c
                     }
                 }
             }
-
+            // do not overwrite
+            if (json.containsKey(name)) {
+                continue;
+            }
             // handle Booleans
             if (dv.type == DeviceValueType::BOOL && Helpers::hasValue(*(uint8_t *)(dv.value_p), EMS_VALUE_BOOL)) {
                 // see how to render the value depending on the setting