[Bug report] Cannot format large json document

Explanation

The json-language-server crash when I try to parse a large json file. But it works when I try to parse a smaller one.

Here's the file that I failed to parse.
tmp.json

Here is the stack trace.

Error - 16:52:14] Error while formatting range for file:///<...>/tmp.json: Cannot read properties of undefined (reading 'length')
TypeError: Cannot read properties of undefined (reading 'length')
    at e.applyEdits (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/json-language-features/server/dist/node/875.jsonServerMain.js:1:55701)
    at F (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/json-language-features/server/dist/node/774.jsonServerMain.js:1:5466)
    at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/json-language-features/server/dist/node/774.jsonServerMain.js:1:6731
    at Immediate._onImmediate (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/json-language-features/server/dist/node/774.jsonServerMain.js:1:12112)
    at process.processImmediate (node:internal/timers:483:21)

Version

Version: 1.99.3 (Universal)
Commit: 17baf841131aa23349f217ca7c570c76ee87b957
Date: 2025-04-15T23:18:46.076Z (1 day ago)
Electron: 34.3.2
ElectronBuildId: 11161073
Chromium: 132.0.6834.210
Node.js: 20.18.3
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.4.0

OS:
macOS sequoia 15.4
apple m2

Start by reproducing formatting with the attached tmp.json using the reported VS Code and macOS versions. Trace the formatting path corresponding to applyEdits in the JSON language service, then add or update coverage for the large document case. Done means formatting no longer crashes and the expected edits are applied successfully.