fix bug with last_values

mini-beieli-node.ino

@@ -156,7 +156,7 @@ void setup(void)
 
   setup_platform();
   SetupScales(config_data.debug_level);
-  ClearLoraData();
+  ClearLoraData(true);
   setup_bme280();
 
   setup_flash();
@@ -382,7 +382,7 @@ void loop()
   }
 }
 
-void ClearLoraData(void)
+void ClearLoraData(bool clearLastValues)
 {
   lora_data.version = LORA_DATA_VERSION;
   lora_data.vbat = 0;
@@ -412,6 +412,7 @@ void ClearLoraData(void)
   my_position = 0;
 
   // We initialize last_sensor_reading
+  if (clearLastValues) {
     last_sensor_reading.vbat = 0;
     last_sensor_reading.weight1 = 0;
     last_sensor_reading.weight2 = 0;
@@ -420,6 +421,7 @@ void ClearLoraData(void)
     last_sensor_reading.humidity = 0;
     last_sensor_reading.pressure = 0;
   }
+}
 
 void ShowLORAData(bool firstTime)
 {
@@ -859,7 +861,7 @@ void startSendingUplink(bool firstTime, bool confirmed)
     }
   }
 
-  ClearLoraData();
+  ClearLoraData(false);
 }
 
 static void sendBufferDoneCb(