Fix Azure event bus publishing issue

framework/src/Volo.Abp.EventBus.Azure/Volo/Abp/EventBus/Azure/AzureDistributedEventBus.cs

@@ -87,7 +87,7 @@ namespace Volo.Abp.EventBus.Azure
 
         public override async Task PublishFromOutboxAsync(OutgoingEventInfo outgoingEvent, OutboxConfig outboxConfig)
         {
-            await PublishAsync(outgoingEvent.EventName, outgoingEvent.EventData);
+            await PublishAsync(outgoingEvent.EventName, outgoingEvent.EventData, outgoingEvent.Id);
         }
 
         public override async Task ProcessFromInboxAsync(IncomingEventInfo incomingEvent, InboxConfig inboxConfig)
@@ -188,15 +188,28 @@ namespace Volo.Abp.EventBus.Azure
             unitOfWork.AddOrReplaceDistributedEvent(eventRecord);
         }
 
-        protected virtual async Task PublishAsync(string eventName, object eventData)
+        protected virtual Task PublishAsync(string eventName, object eventData)
         {
             var body = _serializer.Serialize(eventData);
 
+            return PublishAsync(eventName, body, null);
+        }
+
+        protected virtual async Task PublishAsync(
+            string eventName,
+            byte[] body,
+            Guid? eventId)
+        {
             var message = new ServiceBusMessage(body)
             {
                 Subject = eventName
             };
 
+            if (message.MessageId.IsNullOrWhiteSpace())
+            {
+                message.MessageId = (eventId ?? GuidGenerator.Create()).ToString("N");
+            }
+
             var publisher = await _publisherPool.GetAsync(
                 _options.TopicName,
                 _options.ConnectionName);