[BUG] Keep getting `fg: no job control` on windows

Environment

• Platform (select one):
• [x] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 1.0.61 (Claude Code)
• Operating System: Windows 11
• Terminal: bash

Bug Description

On one of my computers (with admin access) I keep getting fg: no job control whenever it's running any command.
I tried:

• Setting set -m
• Running as admin
• Having a wrapper configured in CLAUDE_CODE_GIT_BASH_PATH with @"C:\Program Files\Git\bin\bash.exe" -i %* (and some more configurations)
• Starting from PS, cmd, WSL all same error
• Removing everything from .bashrc

Steps to Reproduce

1. Launch Claude
2. say `run npm run build `
3. Error

Actual Behavior

That it's able to run the command, like I can run it from my own terminal just fine without any issues

Additional Context

> run `npm run build`

● I'll run the build command for you.

● Bash(npm run build)
  ⎿  Error: /usr/bin/bash: line 1: fg: no job control


     > @app/source@0.0.0 build
     > nx run-many -t build --prod


      NX   Command failed: %windir%\System32\REG.exe QUERY HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography /v
     MachineGuid

     /usr/bin/bash: line 1: fg: no job control