[DocumentIntelligence] ClassifyDocument: AnalyzeResult.Content comes back non-empty

[kinelski]

The "content" property comes back with some line breaks instead of an empty string:

"apiVersion": "2024-11-30",
"modelId": "2103457635",
"stringIndexType": "utf16CodeUnit",
"content": "\n\n\n",

This issue started happening on service version 2024-11-30.

We had to comment out an assertion of our tests in the shared ValidateGenericClassifierResult method. Once this issue is fixed on the service side, we must uncomment this line and reenable this assertion.

[github-actions]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @ctstone @vkurpad.