FIx loophole with telemetry coercion

Author: thebentern

src/mesh/NodeDB.cpp

@@ -322,9 +322,9 @@ NodeDB::NodeDB()
     // Uncomment below to always enable UDP broadcasts
     // config.network.enabled_protocols = meshtastic_Config_NetworkConfig_ProtocolFlags_UDP_BROADCAST;
 
-    // If we are setup to broadcast on the default channel, ensure that the telemetry intervals are coerced to the minimum value
-    // of 30 minutes or more
-    if (channels.isDefaultChannel(channels.getPrimaryIndex())) {
+    // If we are setup to broadcast on any default channel slot (with default frequency slot semantics),
+    // ensure that the telemetry intervals are coerced to the minimum value of 30 minutes or more.
+    if (channels.hasDefaultChannel()) {
         LOG_DEBUG("Coerce telemetry to min of 30 minutes on defaults");
         moduleConfig.telemetry.device_update_interval = Default::getConfiguredOrMinimumValue(
             moduleConfig.telemetry.device_update_interval, min_default_telemetry_interval_secs);