[BUG] branch-listing widget — agent confirmed it's an undocumented/buggy Claude Code UI element

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

That widget is Claude Code's active-branches/PR panel, not git. 6 identical entries = bug or it's listing 6 sessions/checkpoints all tied to that one branch.

<img width="3030" height="970" alt="Image" src="https://github.com/user-attachments/assets/1a053178-a0f8-444f-bee2-9bd04457a18f" />

What Should Happen?

These branches don't exist anymore, but still displays and takes up space

Error Messages/Logs

Steps to Reproduce

No clue what's behind this bug

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.132

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_