Count disconnected clients on persistence restore.

src/persist.c

@@ -54,6 +54,9 @@ static struct mosquitto *_db_find_or_add_context(struct mosquitto_db *db, const
 			return NULL;
 		}
 
+#ifdef WITH_SYS_TREE
+		db->disconnected_count++;
+#endif
 		context->clean_session = false;
 
 		HASH_ADD_KEYPTR(hh_id, db->contexts_by_id, context->id, strlen(context->id), context);

src/read_handle_server.c

@@ -419,7 +419,6 @@ int mqtt3_handle_connect(struct mosquitto_db *db, struct mosquitto *context)
 		mqtt3_context_cleanup(db, found_context, false);
 		found_context->state = mosq_cs_connected;
 		if(context->address){
-			//found_context->address = _mosquitto_strdup(context->address);
 			found_context->address = context->address;
 			context->address = NULL;
 		}else{