Ctrl+G "open in editor" shortcut does nothing in AskUserQuestion "Chat about this" flow

Description

When answering a question from the AskUserQuestion tool, selecting "Chat about this"
reveals a hint that Ctrl+G opens the current context in $EDITOR (nvim in my case).
Pressing Ctrl+G does nothing — no editor launches, no visible error.

Environment

• Claude Code version: 2.1.233
• OS: WSL2 (Linux 6.6.87.2-microsoft-standard-WSL2), host Windows
• Terminal: Alacritty (running on Windows host, connecting into WSL2)
• Shell: zsh
• $EDITOR / $VISUAL: nvim (both set)

Repro steps

1. Trigger an AskUserQuestion prompt.
2. Select "Chat about this" on a question.
3. Note the hint to press Ctrl+G to open in editor.
4. Press Ctrl+G.
5. Nothing happens — no editor opens.

What I've ruled out

Confirmed the raw keystroke reaches the terminal/shell correctly outside of
Claude Code — a manual read -k 1 -s key; echo -n "$key" | xxd in zsh while
pressing Ctrl+G returns byte 07 (BEL) as expected. Also checked:

• No custom keybindings.json in ~/.claude
• No tmux/zellij session intercepting the keystroke
• Alacritty's Windows-side config (alacritty.toml) has no binding on Ctrl+G,

only an unrelated Shift+Return binding

This suggests the issue is in Claude Code's own key handling or in the
editor-launch handshake (suspending its own terminal control to exec $EDITOR),
not the terminal/OS/shell layer.

Expected behavior

Pressing Ctrl+G during "Chat about this" should suspend Claude Code and open
the current content in $EDITOR (nvim), as the on-screen hint describes.