Python: Fix OpenAI Responses API 400 error on multi-turn conversations with previous_response_id#3800

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Copilot wants to merge 6 commits intomainfrom

copilot/fix-openai-responses-client-bug

Commits on Feb 10, 2026

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Copilot
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Fix OpenAI Responses API message filtering for multi-turn conversations

Copilot
and
markwallace-microsoft
committed
Preserve system/developer messages when filtering with previous_response_id

Copilot
and
markwallace-microsoft
committed
Fix trailing whitespace in message filtering logic

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markwallace-microsoft
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Merge branch 'main' into copilot/fix-openai-responses-client-bug
markwallace-microsoft
authored
Run pre-commit formatting - fix whitespace and code style

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markwallace-microsoft
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