fix create topic during internal publish

Author: sevenbitbyte

src/topics/local-topic-host.js

@@ -135,12 +135,15 @@ class LocalTopicHost {
     await topic.publish(data, sender)
   }
 
-  async publishInternal(path, data){
-    const topic = this.getTopic(path, false)
+  async publishInternal(path, data, create=false){
+    const topic = this.getTopic(path, create)
 
     debug('publishInternal', path)
 
-    await topic.publish(data)
+    if(topic){
+      await topic.publish(data)
+    }
+
   }
 
   async destroyNode(peer){