[BUG] TUI freezes when entering /config, exiting, then re-entering /config

Summary

Entering /config, exiting, then re-entering /config causes the entire Claude Code TUI to freeze. The only way to recover is to force-quit and restart Claude Code.

Environment

• OS: macOS 25.5.0 (Darwin)
• Claude Code version: 2.1.104
• Shell: zsh
• Terminal: iTerm2

Steps to Reproduce

1. Open Claude Code in a project directory
2. Type /config and press Enter — the config screen opens normally
3. Exit the config screen (press Escape)
4. Type /config and press Enter again
5. Observe: the entire TUI freezes — no input is accepted, no response to Ctrl+C or Escape

Expected Behavior

The /config screen should open normally every time it is invoked.

Actual Behavior

On the second invocation of /config, the TUI freezes completely. No keyboard input is accepted. The process must be force-killed (close terminal window or kill the process).

Workaround

Restart Claude Code entirely after using /config once.

Notes

• Reproducible every time — not intermittent
• Only requires a single /config session followed by a second /config invocation to trigger
• No specific settings changes needed in /config — just opening and closing it is enough