[Error] [GitHub.copilot-chat] unhandlederror-Cannot read properties of null (reading 'value')

## Error Message
````
unhandlederror-Cannot read properties of null (reading 'value')
````

## Stack Trace
    at (anonymous) (../src/extension/chatSessions/copilotcli/vscode-node/tools/push/diagnosticsChanged.ts:52:45)
    at d3o (../src/extension/chatSessions/copilotcli/vscode-node/tools/push/diagnosticsChanged.ts:44:27)
    at getDiagnosticsForUri (../src/extension/chatSessions/copilotcli/vscode-node/tools/push/diagnosticsChanged.ts:63:70)
    at (anonymous) (../src/extension/chatSessions/copilotcli/vscode-node/tools/push/diagnosticsChanged.ts:63:59)
    at task ([./src/vs/base/common/async.ts:421:12](https://github.com/microsoft/vscode/blob/110a328ea54b42367b803ec53ee0bf52ef26b419/src/vs/base/common/async.ts#L421))

Raw Stack Trace (minified)

````
TypeError: Cannot read properties of null (reading 'value') at Studio /Resources/app/extensions/copilot/dist/extension.js:2854:57548 at Array.map () at d3o ( Studio /Resources/app/extensions/copilot/dist/extension.js:2854:57310) at Studio /Resources/app/extensions/copilot/dist/extension.js:2854:57647 at Array.map () at Studio /Resources/app/extensions/copilot/dist/extension.js:2854:57640 at Studio /Resources/app/extensions/copilot/dist/extension.js:24:82143 at runNextTicks (node::65:5) at process.processTimers (node::538:9)
````

## Details
| Property | Value |
| --- | --- |
| Bucket ID | [`39fd0ae3-a3fd-9378-59c0-a9824985e6fc`](https://errors.code.visualstudio.com/bucket/39fd0ae3-a3fd-9378-59c0-a9824985e6fc?product=VSCode&extension=GitHub.copilot-chat&commit=110a328ea54b42367b803ec53ee0bf52ef26b419) |
| Extension Version | 0.62.0 |
| Last Seen | Fri Aug 21 2026 23:29:08 GMT+0000 (Coordinated Universal Time) |
| Platforms | darwin |
| Product | VSCode |

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*This issue was automatically created from the VS Code Errors Dashboard*