Web Activity in Azure Government Authentication with Service Principal fails with error Confidential Client is not supported in Cross Cloud request

[EntityAdam]

Questions:
Seems like the authentication request is trying to use Azure Commercial (login.microsoftonline.com) to authenticate the SP. How do we provide the correct authority (login.microsoftonline.us) for Azure Government?

If I use a REST call to get a token from login.microsoftonline.us, and pass the client credentials and secret, it works dandy.

Error:

GetSpnAuthenticationToken: Failed while processing request for access token with error: Failed to get access token by using service principal. Error: invalid_request, Error Message: AADSTS900382: Confidential Client is not supported in Cross Cloud request. Trace ID: {TRACE_ID} Correlation ID: {CORRELATION_ID} Timestamp: {TIMESTAMP}.

{
    "name": "SitesList",
    "type": "WebActivity",
    "dependsOn": [],
    "policy": {
        "timeout": "0.12:00:00",
        "retry": 0,
        "retryIntervalInSeconds": 30,
        "secureOutput": false,
        "secureInput": false
    },
    "userProperties": [],
    "typeProperties": {
        "method": "GET",
        "url": "https://graph.microsoft.us/v1.0/sites/root/lists",
        "authentication": {
            "type": "ServicePrincipal",
            "userTenant": "{TENANT_ID}",
            "username": "{SERVICE_PRINCIPAL_APP_ID",
            "resource": "https://graph.microsoft.us",
            "password": {
                "type": "SecureString",
                "value": "**********"
            }
        }
    }
}

[EntityAdam]

I need to mention that this is in the "WebActivity". I have found that if you create a Credential you can pick the correct cloud, (Azure Commercial, Azure Gov, etc), why can't the option to select the correct Cloud be surfaced be used within WebActivity, or Linked Service (REST/HTTP)?