fix(node): initialize records_by_bucket properly

sn_networking/src/record_store.rs

@@ -372,12 +372,23 @@ impl NodeRecordStore {
 
         let records = Self::update_records_from_an_existing_store(&config, &encryption_details);
 
+        // Initialize records_by_bucket
+        let mut records_by_bucket = HashMap::new();
+        for (addr, _record_type) in records.values() {
+            let distance = self.local_address.distance(&addr);
+            let bucket = distance.ilog2().unwrap_or_default();
+            records_by_bucket
+                .entry(bucket)
+                .or_default()
+                .insert(key.clone());
+        }
+
         let cache_size = config.records_cache_size;
         let mut record_store = NodeRecordStore {
             local_address: NetworkAddress::from_peer(local_id),
             config,
             records,
-            records_by_bucket: HashMap::new(),
+            records_by_bucket,
             records_cache: RecordCache::new(cache_size),
             network_event_sender,
             local_swarm_cmd_sender: swarm_cmd_sender,