Should Content property ever come back null with FinishReason=ChatFilter with no exception thrown?

[pamims]

I wrote this code to help reproduce the issue as fast as possible, though it may take a handful of attempts (just hit the enter button when prompted). I throw a break point in and inspect the returned message and find a null Content property. The finish reason is ChatFilter, and there is a positive token count. By digging through the data, I can even piece together what the message would have been. Interestingly, the raw data indicates that none of the filters were triggered. Do I need to write code to detect this condition, or is this a bug?

using Azure.Identity;
using Azure.Security.KeyVault.Secrets;
using Microsoft.SemanticKernel.ChatCompletion;
using Microsoft.SemanticKernel.Connectors.AzureOpenAI;
using Microsoft.SemanticKernel;
using OpenAI.Chat;


namespace KeyVaultOpenAIExample
{
    class Program
    {
        static async Task Main(string[] args)
        {
            // Replace with your Key Vault name
            const string keyVaultName = "name";
            const string azOpenAiResourceName = "other name";

            var kvUri = $"https://{keyVaultName.ToLower()}.vault.azure.net";
            var azOpenAiUri = $"https://{azOpenAiResourceName.ToLower()}.openai.azure.com";

            // Authenticate using DefaultAzureCredential
            var client = new SecretClient(new Uri(kvUri), new DefaultAzureCredential());

            // Replace with your secret name
            const string secretName = "secret name";

            // Retrieve the secret
            KeyVaultSecret secret = client.GetSecret(secretName);
            string openAiKey = secret.Value;

            IChatCompletionService service = new AzureOpenAIChatCompletionService("gpt-4o-mini", azOpenAiUri, openAiKey);
            AzureOpenAIPromptExecutionSettings settings = new AzureOpenAIPromptExecutionSettings
            {
                MaxTokens = 1024,
                ChatSystemPrompt = """
                    You are a green cheek conure named Morty.
                    You are curious and sassy, but also very loving.
                    """

            };

            // Ask a hard-coded question
            string question = "Who is your daddy?";

            Microsoft.SemanticKernel.ChatMessageContent message = null!;
            do
            {
                message = await service.GetChatMessageContentAsync(question, settings);
                Console.WriteLine("HitEnter");
                _ = Console.ReadLine();
            }
            while (message.Content is not null);
            OpenAI.Chat.ChatCompletion? innerContent = message.InnerContent as OpenAI.Chat.ChatCompletion;

            // Print the message
            Console.WriteLine($"{nameof(message.Content)}: {message.Content ?? "null"}");
            Console.WriteLine($"{nameof(ChatCompletion.FinishReason)}: {innerContent?.FinishReason.ToString() ?? "null"}");
            Console.WriteLine($"{nameof(ChatCompletion.Usage.OutputTokenCount)}: {innerContent?.Usage?.OutputTokenCount.ToString() ?? "null"}");
            _ = Console.ReadLine();
        }
    }
}

[sophialagerkranspandey]

Tagging @SergeyMenshykh