[BUG] Input text not cleared after sending message (regression between 2.1.45 and 2.1.47)

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?

After submitting a prompt, the input text remains in the text field instead of being cleared.
The message is sent and processed correctly, but the input must be manually cleared before typing the next prompt.

Additionally, Enter occasionally inserts a newline instead of submitting.
Workaround: Ctrl+Z → fg → Enter sends the message, but input still persists.

What Should Happen?

The input field should be cleared after a message is successfully sent.

Error Messages/Logs

Steps to Reproduce

1. Launch claude in a terminal (VSCode integrated or Kitty)
2. Type a message and press Enter
3. Message is sent and processed, but input field still contains the previous text

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.45

Claude Code Version

2.1.49

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

VS Code integrated terminal

Additional Information

• 2.1.45 : OK — input clears correctly
• 2.1.47 : BUG — input persists after submit
• 2.1.49 : same