Can't open codeblock pill diff

[roblourens]

Have a bunch of edits, click around a lot, when I try to open a diff that I previously opened, I got this

Dunno if it's enough info to understand the issue, lmk where I should set a breakpoint next time if so

2025-05-26 10:39:08.586 [error] [Window] Error: Unable to resolve text model content for resource chat-editing-snapshot-text-model:/Users/roblou/code/vscode-copilot/src/extension/tools/node/createFileTool.tsx?%7B%22sessionId%22%3A%226a5f2da6-87bf-46b4-b4a3-1cac818413d9%22%2C%22requestId%22%3A%22request_96bfbee3-3cb1-45f2-808e-32529e7de56f%22%2C%22undoStop%22%3A%22d19944f6-f46c-4e17-911b-79a8e843c7c0%22%7D
    at RYe.u (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1832:22407)
    at async RYe.r (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1832:21437)
    at async kkt.acquire (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:27:3125)
    at async AYe.createModelReference (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1832:22903)
    at async tP.resolve (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:677:17463)
    at async Promise.all (index 1)
    at async Ja.C (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:663:13337)
    at async Ja.resolve (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:663:13173)
    at async XN.setInput (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:663:14656)
    at async e9e.S (vscode-file://vscode-app/Applications/Visual%20Studio%20Code%20-%20Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:685:19754)

In my current session, 5 or 6 of them are showing this, and some of them I think are showing the wrong diff. I'll try to reduce a separate issue for that.