GitHub Copilot selectChatModels is returning undefined

[sean-mcmanus]

• Copilot Chat Extension Version:
• VS Code Version:Version: 1.107.1 (user setup)
  Commit: 994fd12
  Date: 2025-12-17T14:15:14.850Z
  Electron: 39.2.3
  ElectronBuildId: 12895514
  Chromium: 142.0.7444.175
  Node.js: 22.21.1
  V8: 14.2.231.21-electron.0
  OS: Windows_NT x64 10.0.26100
• Feature (e.g. agent/edit/ask mode): C/C++ extension
• Selected model (e.g. GPT 4.1, Claude 3.7 Sonnet): GPT-4 family
• Logs:

Steps to Reproduce:

1. Our C/C++ extension calls selectChatModel to use GitHub Copilot features but it's failing by returning undefined at https://github.com/microsoft/vscode-cpptools/blob/main/Extension/src/LanguageServer/Providers/CopilotHoverProvider.ts#L48

The repro is to hover over some code in a C++ file with the C/C++ extension enabled and/or debug our extension.

[sean-mcmanus]

Oh, looks like there's a fix with our extension, so I'll close this.