[BUG] In RC mode, plan rejection does not pause the session - Claude keeps guessing rejection reasons

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?

If I reject a plan in CLI mode, the session stays stopped and I can tell Claude what to do instead. In RC mode, the plan rejection has Claude keep going, not just constantly wasting tokens on trying to guess why I rejected the plan, but often also making a random guess and starting to corrupt the plan in stupid ways, with no easy way to undo (since the tool calls are STILL not a rewind checkpoint!), while the dialog window has a "submit" button, but no stop - so constantly have to flail around to rush and get Claude to stop doing the stupid thing...

Just now, what happened was worse - it went ahead and completely OVERWROTE the whole plan with something completely different, in a way THAT I HAVE NO GOOD WAY TO RECOVER (other than using a 3rd-party "replay all edits from a claude session log" tool) :(

What Should Happen?

Rejecting the plan should keep the session stopped and let me type my prompt - same as it is done in CLI.

Error Messages/Logs

Steps to Reproduce

In RC mode, reject a plan.

Claude Model

Not sure / Multiple models

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.150

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_