[John Wooten (JFWooten4)]

Possibly related to #9049: pull request descriptions load after the overview is initially rendered, so descriptions appear blank.

Output

axListenersExceededWarning: Possible EventEmitter memory leak detected. 11 quoteReply listeners added. Use emitter.setMaxListeners() to increase limit
    at _addListener (webview-pr-description.js:2896:21433)
    at EventEmitter.addListener (webview-pr-description.js:2896:21738)
    at AddComment (webview-pr-description.js:2911:7763)
    at oh (webview-pr-description.js:672:52433)
    at di (webview-pr-description.js:672:61905)
    at Rj (webview-pr-description.js:674:9375)
    at Qj (webview-pr-description.js:674:950)
    at Kj (webview-pr-description.js:674:853)
    at yj (webview-pr-description.js:672:89461)
    at webview-pr-description.js:672:38939
ProcessEmitWarning @ webview-pr-description.js:2896
_addListener @ webview-pr-description.js:2896
addListener @ webview-pr-description.js:2896
AddComment @ webview-pr-description.js:2911
oh @ webview-pr-description.js:672
di @ webview-pr-description.js:672
Rj @ webview-pr-description.js:674
Qj @ webview-pr-description.js:674
Kj @ webview-pr-description.js:674
yj @ webview-pr-description.js:672
(anonymous) @ webview-pr-description.js:672
M.unstable_runWithPriority @ webview-pr-description.js:2903
cg @ webview-pr-description.js:672
fg @ webview-pr-description.js:672
gg @ webview-pr-description.js:672
Ig @ webview-pr-description.js:672
zh @ webview-pr-description.js:672
(anonymous) @ webview-pr-description.js:2904
(anonymous) @ webview-pr-description.js:2904
handleMessage @ webview-pr-description.js:2904
postMessage
(anonymous) @ index.html?id=63975aeb-badc-4f2b-a95c-04c4e8641f6f&parentId=2&origin=88970d2d-44af-44bb-8f27-21ec8edb847a&swVersion=6&extensionId=GitHub.vscode-pull-request-github&platform=electron&vscode-resource-base-authority=vscode-resource.vscode-cdn.net&parentOrigin=vscode-file%3A%2F%2Fvscode-app:1250
HostMessaging.channel.port1.onmessage @ index.html?id=63975aeb-badc-4f2b-a95c-04c4e8641f6f&parentId=2&origin=88970d2d-44af-44bb-8f27-21ec8edb847a&swVersion=6&extensionId=GitHub.vscode-pull-request-github&platform=electron&vscode-resource-base-authority=vscode-resource.vscode-cdn.net&parentOrigin=vscode-file%3A%2F%2Fvscode-app:304
postMessage
doPostMessage @ webviewElement.ts:588
_send @ webviewElement.ts:408
postMessage @ webviewElement.ts:399
postMessage @ overlayWebview.ts:391
$postMessage @ mainThreadWebviews.ts:72
_doInvokeHandler @ rpcProtocol.ts:458
_invokeHandler @ rpcProtocol.ts:443
_receiveRequest @ rpcProtocol.ts:370
_receiveOneMessage @ rpcProtocol.ts:297
(anonymous) @ rpcProtocol.ts:159
_deliver @ event.ts:1391
fire @ event.ts:1422
fire @ ipc.net.ts:658
(anonymous) @ localProcessExtensionHost.ts:436

The changes also guards against stale asynchronous results to prevent outdated data from updating a closed or superseded overview.

[Copilot]

🟢 Approval recommended

The implementation addresses the blank-description race with focused safeguards and comprehensive regression tests.

0 open findings

What changed in this PR

Ensures pull request descriptions are hydrated before the overview’s initial render while preventing stale asynchronous updates.

Changes:

• Fetches missing rendered description HTML before initialization.
• Adds stale-update and disposal guards.
• Adds regression coverage for hydration, failures, and races.

File	Description
src/​github/​pullRequestOverview.ts	Hydrates descriptions and guards asynchronous updates.
src/​test/​github/​pullRequestOverview.test.ts	Covers description loading and stale-result scenarios.

🧠 Review effort: Balanced

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[Copilot]

🟡 Changes recommended

The cached-model lookup can overwrite newer descriptions before freshness checks and preserve whitespace-only HTML, causing stale or blank pull request descriptions.

2 open issues

• Normalize whitespace-only cached HTML before resolving descriptions · New
• Prevent stale lookups from overwriting cached pull request updates · New

_{Review effort: Balanced}