GetScanResult endpoint does not return "datasourceInstances" list

Hello!

I'm collecting company's PBI metadata via PBI API (Scan Jobs to be precise).
Following documentation, I call PostWorkspaceInfo endpoint with additional params

getArtifactUsers=True&lineage=True&datasourceDetails=True&datasetSchema=True&datasetExpressions=True

SCAN_GETINFO_PARAMS = {
    "getArtifactUsers": "true",
    "lineage": "true",
    "datasourceDetails": "true",
    "datasetSchema": "true",
    "datasetExpressions": "true",
}


PBI_SCOPE = "https://analysis.windows.net/powerbi/api/.default"


class PowerBIOAuth2ClientCredentialsAuth(AuthBase):
    """HttpHook auth adapter around dlt OAuth2 client credentials."""

    def __init__(self, login: str, password: str) -> None:
        tenant_id = "..."
        client_id = "..."
        if not password:
            raise AirflowException("Power BI client secret is empty")
        self._auth = OAuth2ClientCredentials(
            access_token_url=f"https://login.microsoftonline.com/{tenant_id}/oauth2/v2.0/token",
            client_id=client_id,
            client_secret=password,
            access_token_request_data={"scope": PBI_SCOPE},
        )

    def __call__(self, request: PreparedRequest) -> PreparedRequest:
        return self._auth(request)


def create_scan(
    batch_index: int,
    ch_conn_id: str,
    select_ids_sql: str,
    powerbi_conn_id: str,
    batch_size: int = 100,
) -> str:


"""Create a Power BI scan for one mapped workspace batch.

Args:
    batch_index: Batch number produced by dynamic task mapping.
    ch_conn_id: Airflow ClickHouse connection id used to fetch workspace ids.
    select_ids_sql: SQL query that returns workspace ids and supports
        `limit` and `offset` parameters.
    powerbi_conn_id: Airflow HTTP connection id for Power BI API access.
    batch_size: Number of workspace ids requested from ClickHouse per batch.

Returns:
    The created Power BI `scan_id`.

Raises:
    AirflowException: If the batch is empty, API response is non-202, or the
        response payload contains an API error or misses the `id` field.
"""

...


http = HttpHook(
    method="POST",
    http_conn_id=powerbi_conn_id,
    auth_type=PowerBIOAuth2ClientCredentialsAuth,
)

response = http.run(
    endpoint=f"v1.0/myorg/admin/workspaces/getInfo?{urlencode(SCAN_GETINFO_PARAMS)}",
    data=json.dumps({"workspaces": chunk}),
    headers={"Content-Type": "application/json", "Accept": "application/json"},
    extra_options={"check_response": False},
)


body: dict[str, Any] = response.json()
if body.get("error"):
    raise AirflowException(f"getInfo API error for batch {batch_index}: {body['error']}")

scan_id = body.get("id")
if not scan_id:
    raise AirflowException(f"getInfo response missing `id`: {body}")

logging.info("Created scan %s for batch %s (%s workspaces)", scan_id, batch_index, len(chunk))
return scan_id	

POST request is on screenshot below (tried both 'true' and "True" - no changes)

INFO - Calling Power BI getInfo endpoint for batch 0: v1.0/myorg/admin/workspaces/getInfo?getArtifactUsers=True&lineage=True&datasourceDetails=True&datasetSchema=True&datasetExpressions=True

In repsonse for GET GetScanResult I expect to use "datasourceInstances" list data later instead of use Datasets GetDatasourcesAsAdmin to get exact the same info, but I didn't get this list. Only related data I have it's "datasourceInstanceId" in "datasourceUsage" list in "datasets" list.

"datasets": [
            {
                "id": "",
                "name": "",
                "tables": [],
                "configuredBy": "",
                "configuredById": "",
                "isEffectiveIdentityRequired": false,
                "isEffectiveIdentityRolesRequired": false,
                "refreshSchedule": {
                    "days": [
                        "Sunday",
                        "Monday",
                        "Tuesday",
                        "Wednesday",
                        "Thursday",
                        "Friday",
                        "Saturday"
                    ],
                    "times": [
                        "05:30"
                    ],
                    "enabled": true,
                    "localTimeZoneId": "UTC",
                    "notifyOption": "MailOnFailure"
                },
                "targetStorageMode": "Abf",
                "createdDate": "",
                "contentProviderType": "",
                "datasourceUsages": [
                    {
                        "datasourceInstanceId": "005f54d6-6e55-496c-93da-e2a96356b72a"
                    }
                ],
                "tags": []
            },

I've read that datasourceDetails=True might be an issue, but I pass this param into requst url.
Could you help me please figure out why 'datasourceInstances' list is not in the GetScanResult response?