Review sessions: Preserve explicit unread marks on the active session (#336744)

This work implements Mark as Unread does not mark the currently focused session as unread (closed)

Steps to reproduce: * Open the Agents window and focus a session. * While that session remains focused, use Mark as Unread on it. * Observe the session's unread state.

Expected: The focused session is marked as unread and displays its unread indicator.

Actual: Nothing changes; the session remains read. This appears to reproduce only when the session being marked as unread is currently focused.

Additional context: See the attached screen recording.

https://github.com/user-attachments/assets/2ef1bf40-1ff1-44f3-9d39-a702009599ac

Version: 1.139.0-insider
Commit: 046944034292b5479b4e9a50ad1a508033ffb64f
Date: 2026-09-17T03:41:14Z
Electron: 43.6.0
ElectronBuildId: 15274685
Chromium: 150.0.7871.250
Node.js: 24.20.0
V8: 15.0.245.31-electron.0
@github/copilot: 1.0.84-5
@github/copilot-sdk: 1.0.13
OS: Darwin arm64 25.6.0

benibenj

microsoft/vscode

benibenj/agents/fix-active-session-read-unread-issue

Diff Delta:

200

About 71 Diff Delta/hour

Classified as: General

benibenj's Description of Work #336721 Mark as Unread does not mark the currently focused session as unread

Closes #336721.

Summary

The active-session watcher immediately marked explicit unread updates as read again. Preserve that user intent until the user switches away and returns, or explicitly marks the session read.

Keep normal automatic reading of active-session updates and existing inactive-session behavior.

Preserve the unread mark when reopening the already-active session from the main or flat sessions list.

Add regression coverage for navigation, provider updates, and Mark as Read / Mark All as Read.

Validation

Client compilation completed with zero errors (npm run gulp compile-client).

Hygiene passed for all six changed files.

Both affected test suites passed: 293 passing, 2 pending.

6 total changed files

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sessions: Preserve explicit unread marks on the active session #336744

benibenj's Description of Work #336721 Mark as Unread does not mark the currently focused session as unread

Summary

Validation