Managed ID cannot be used for connection authentication with OpenAI model in agent workflow in Azure portal configured in Japanese.

### Severity

P2 - High (Major functionality broken)

### Describe the Bug with repro steps

Expected behavior
Managed ID can be used for connection authentication with OpenAI model in agent workflow in Azure portal configured in Japanese.

Actual behavior
Managed ID cannot be used for connection authentication with OpenAI model in agent workflow in Azure portal configured in Japanese.

Steps to reproduce
0.Set azure portal language to Japanese.

https://learn.microsoft.com/en-us/azure/logic-apps/create-agent-workflows?source=docs
1.Deploy Standard Logic Apps
2.Assign the Cognitive Services OpenAI Contributor role to the system-assigned Managed ID
3.Deploy Agent workflow
4.In the "Default Agent" action, select Managed Service Identity as the Authentication Type for the OpenAI model. 5.
5.Clicking “Save” does not respond and checking ‘Connections’ shows “接続は無効です,” that means "Connection is invalid".

### What type of Logic App Is this happening in?

Standard (Portal)

### Are you experiencing a regression?

No

### Which operating system are you using?

Windows

### Did you refer to the TSG before filing this issue? https://aka.ms/lauxtsg

Yes

### Workflow JSON

```json
{
"definition": {
"$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
"contentVersion": "1.0.0.0",
"actions": {
"Default_Agent": {
"type": "Agent",
"inputs": {
"parameters": {
"agentModelType": "AzureOpenAI",
"deploymentId": "testmodel",
"messages": [
{
"role": "system",
"content": "You're an AI agent that answers questions about the weather. You can also send weather information in email to a provided email address. If you're asked to send the weather in email, ask for an email address, if not provided.\n\nFormat your response with bullet lists when appropriate. Make your responses concise and useful, but use a conversational and friendly tone. You can include suggestions like \"Carry an umbrella\" or \"Dress in layers\"."
}
],
"agentModelSettings": {
"agentHistoryReductionSettings": {
"agentHistoryReductionType": "maximumTokenCountReduction",
"maximumTokenCount": 128000
},
"deploymentModelProperties": {
"name": "gpt-4.1",
"format": "OpenAI",
"version": "2025-04-14"
}
}
},
"modelConfigurations": {
"model1": {
"referenceName": "agent-2"
}
}
},
"runAfter": {},
"limit": {
"count": 100
}
}
},
"outputs": {},
"triggers": {
"When_a_HTTP_request_is_received": {
"type": "Request",
"kind": "Http"
}
}
},
"kind": "Agentic"
}
```

### Screenshots or Videos

Sorry, my attempt to upload a screenshot fails.

### Environment

Microsoft Edge for Business
Version 138.0.3351.121 (Official build) (64-bit)

### Additional context

_No response_