fixes

Author: singhk97

dotnet/packages/Microsoft.TeamsAI/Microsoft.TeamsAI/Application/MessageFetchTaskHandler.cs

@@ -18,7 +18,7 @@ namespace Microsoft.Teams.AI.Application
     /// <summary>
     /// Response for the "message/taskFetch" route handler. Only set one or the other, but not both.
     /// </summary>
-    public class MessageFetchTaskResponse()
+    public class MessageFetchTaskResponse
     {
         /// <summary>
         /// The task module metadata.

dotnet/packages/Microsoft.TeamsAI/Microsoft.TeamsAI/Application/StreamingResponse.cs

@@ -362,11 +362,14 @@ private async Task SendActivity(Activity activity)
                 // Add in Generated by AI
                 if (this.EnableGeneratedByAILabel == true)
                 {
-                    List<ClientCitation>? currCitations = CitationUtils.GetUsedCitations(this.Message, this.Citations);
                     AIEntity entity = new AIEntity();
                     if (this.Citations != null && this.Citations.Count > 0)
                     {
-                        entity.Citation = currCitations;
+                        List<ClientCitation>? currCitations = CitationUtils.GetUsedCitations(this.Message, this.Citations);
+                        if (currCitations != null && currCitations.Count > 0)
+                        {
+                            entity.Citation = currCitations;
+                        }
                     }
 
                     entity.UsageInfo = this.SensitivityLabel;