Bug: Copilot Chat drops reasoning_content field when using DeepSeek models (OpenRouter BYOK), causing 400 Error · Issue #312746 · microsoft/vscode

Copilot Chat Extension Version: VS Code Version: OS Version: Feature (e.g. agent/edit/ask mode): Selected model (e.g. GPT 4.1, Claude 3.7 Sonnet): Logs: When using DeepSeek reasoning models (e.g., ...