Phantom node fix perhaps (#11271)

* trying to fix phantom nodes

* fix comment spam

* oops - missed one

src/mesh/SX126xInterface.cpp

@@ -335,6 +335,7 @@ template <typename T> void SX126xInterface<T>::addReceiveMetadata(meshtastic_Mes
     // LOG_DEBUG("PacketStatus %x", lora.getPacketStatus());
     mp->rx_snr = lora.getSNR();
     mp->rx_rssi = lround(lora.getRSSI());
+    mp->has_rx_rssi = true; // rx_rssi has explicit presence - a genuine reading must be marked present to survive encoding
     LOG_DEBUG("Corrected frequency offset: %f", lora.getFrequencyError());
 }