The GitHub Pull Requests extension sometimes fails to properly detect pull request branches after checking them out with gh co <prnr>. By "failing to detect" I mean that the "GitHub Pull Request" viewlet does not appear in the activity bar, and as a workaround I need to reload the extension host or restart VS Code.

There's a related issue #6378 (and corresponding fix #6755), but the fix seems to be specific to SSH remotes and the issue still repros for me.

Configuration

• Extension version: 0.109.2025040408
• VSCode Version: 1.99.0
• OS: Windows 11
• Repository Clone Configuration (single repository/fork of an upstream repository): Fork of upstream repository
• Github Product (Github.com/Github Enterprise version x.x.x): Github.com

Steps to Reproduce

1. git clone https://github.com/JeffreyCA/azure-dev (fork of https://github.com/Azure/azure-dev)
2. cd azure-dev
3. git remote add upstream https://github.com/Azure/azure-dev
4. gh repo set-default - Choose Azure/azure-dev
5. code . - Open in VS Code
6. In VS Code terminal: gh pr checkout 5001 (Branch is from a different fork, https://github.com/vhvb1989/azure-dev)
   ✅ Extension correctly detects PR branch.
7. In VS Code terminal: git checkout main.
   ✅ GitHub Pull Request disappears from activity bar.
8. In VS Code terminal: gh pr checkout 5039 (From same fork as step 6 https://github.com/vhvb1989/azure-dev but different branch)
   ❌ Extension fails to detects PR branch.

To repro again, run git checkout main, delete the branches with git branch -D <branch-name>, then re-run a gh pr checkout command. (Sometimes I can repro again without deleting the branches.)