[http-client-python] model.__new__ investigation

[l0lawrence]

See Azure/azure-sdk-for-python#47426 for more detail

[github-actions]

🎯 Issue Triage

Investigation into model.__new__ usage in the Python client emitter, tracked from an Azure SDK for Python issue (azure-sdk-for-python#47426).

Category: Bug

Area: emitter:client:python

⚠️ No reproduction provided. See the linked Azure SDK issue for details.

🔍 Analysis

• This is an investigation task related to how the Python client emitter generates or uses model.__new__ in generated model classes.
• The upstream report in azure-sdk-for-python#47426 likely contains stack traces or behavioral details that need to be triaged back to the emitter.
• Affected component: @typespec/http-client-python (Python client emitter).
• No repro code or error details are in this issue body; full context lives in the linked external issue.

📝 Suggested next steps

• Review azure-sdk-for-python#47426 to understand the root cause.
• Determine if model.__new__ usage is generated by the emitter or a downstream SDK concern.
• Add a minimal reproduction if the issue is confirmed in the emitter.

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