From 51a319a3bc3e3032e68ddb13e41168bbc7fe1ae1 Mon Sep 17 00:00:00 2001
From: Jicheng Lu <103353@smsassist.com>
Date: Thu, 12 Dec 2024 17:22:11 -0600
Subject: [PATCH] minor change

---
 .../BotSharp.Plugin.FileHandler/Functions/ReadImageFn.cs       | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Plugins/BotSharp.Plugin.FileHandler/Functions/ReadImageFn.cs b/src/Plugins/BotSharp.Plugin.FileHandler/Functions/ReadImageFn.cs
index 9918d5bf..e2c4f8c2 100644
--- a/src/Plugins/BotSharp.Plugin.FileHandler/Functions/ReadImageFn.cs
+++ b/src/Plugins/BotSharp.Plugin.FileHandler/Functions/ReadImageFn.cs
@@ -24,7 +24,8 @@ public class ReadImageFn : IFunctionCallback
 
         var wholeDialogs = conv.GetDialogHistory();
         var dialogs = AssembleFiles(conv.ConversationId, args?.ImageUrls, wholeDialogs);
-        var agent = await agentService.LoadAgent(message.CurrentAgentId ?? BuiltInAgentId.UtilityAssistant);
+        var agentId = !string.IsNullOrWhiteSpace(message.CurrentAgentId) ? message.CurrentAgentId : BuiltInAgentId.UtilityAssistant;
+        var agent = await agentService.LoadAgent(agentId);
         var fileAgent = new Agent
         {
             Id = agent?.Id ?? Guid.Empty.ToString(),