Unpredictable "Explain with Copilot" in terminal

[bamurtaugh]

Testing #199237

Windows 11 Insiders, latest VS Code Insiders:

Version: 1.85.0-insider (user setup)
Commit: b3b84b5
Date: 2023-11-28T12:02:59.475Z
Electron: 25.9.6
ElectronBuildId: 25427645
Chromium: 114.0.5735.289
Node.js: 18.15.0
V8: 11.4.183.29-electron.0
OS: Windows_NT x64 10.0.25987

• Run docker ps in terminal
• Fails because Docker isn't running
• Click circle, "Rerun command"

• Next line in terminal has sparkle to explain with Copilot:

A few questions:

• Why did the sparkle only appear after the second failed command?
• Why did the sparkle appear in the next line of the terminal? It feels a bit confusing since my next line doesn't have a command written yet, so I'm not sure what I'd be explaining

Perhaps this is by design though, i.e. it takes time to determine if Copilot should offer to explain.

[Tyriar]

Why did the sparkle only appear after the second failed command?

This is very likely this regression: #199448

Why did the sparkle appear in the next line of the terminal?

/duplicate #198116