add 设置网桥初始值

jetlinks-manager/bridge-manager/src/main/java/org/jetlinks/community/bridge/server/aliyun/AliBridgeServer.java

@@ -104,6 +104,9 @@ public class AliBridgeServer extends AbstractClusterUniqueTask<AliBridgeServer>
             }
             bootstrap=new DefaultBridgeBootstrap(params.getId(),bridgeConfigManager);
         }
+        if(bootstrap==null){
+            bootstrap=new DefaultBridgeBootstrap(params.getId(),bridgeConfigManager);
+        }
         //非主节点、非运行状态、已启动
         if(isReplica()||(!BridgeStatus.running.equals(params.getState())&&!BridgeStatus.starting.equals(params.getState()))||start.get()){
             return Mono.just(this);