Worktree selection always creates new branch instead of using selected one

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?

When selecting an existing worktree/branch from the Claude Code UI, a new worktree and branch is created instead of opening the selected one. Expected behavior is that Claude Code opens in the selected worktree on the correct branch.

What Should Happen?

Claude should open the select branch and worktree

Error Messages/Logs

Steps to Reproduce

Open Claude Code
In the worktree/branch selector, select an existing worktree (e.g. claude/exciting-jennings)
Start a new conversation
Observe the active branch inside the conversation (e.g. run git branch)

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Claude Code

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_