[BUG] Repeated Ctrl-D in `/feedback` entry exits the CLI instead of deleting characters

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?

During /bug or /feedback text entry, a single Ctrl-D deletes a character, as expected. A second Ctrl-D in quick succession exits the CLI session, when I would expect it to delete another character.

What Should Happen?

Repeated Ctrl-D during /bug or /feedback entry should delete characters as long as there are characters to delete. Ctrl-D should exit the CLI only if the text entry area is empty (and ideally only if the last character typed was a carriage return).

Error Messages/Logs

Steps to Reproduce

1. Open a new tab in your terminal emulator.
2. Run the claude CLI.
3. At the > prompt, enter the /feedback command.
4. Observe the prompt "Describe the issue below:"
5. In the text entry area, type "This is some rwxt".
6. Press the left arrow key four times until your cursor is at the start of the word "rwxt".
7. Press Ctrl-D twice in quick succession (because you want to correct the error).
8. Watch as your otherwise carefully crafted message is thrown away.

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.69 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

This is not the same as #17336, which is fixed.