REPL: unexpected behavior with   (non break space) on Windows

Bug report

Bug description:

Copy " "==" " into Python REPL (the first space is non breakable, you need to generate a new one though), there are two problems I found:

1. In OS built-in terminal, it is always true

Python 3.13.12 (tags/v3.13.12:1cbe481, Feb  3 2026, 18:22:25) [MSC v.1944 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> " "==" "
True
>>> " "==" " # copied
True

2. In Vscode integrated terminal, it was false as expected at first. But if you copied from the REPL then, the non break space somehow has changed to normal space, this is the same behavior with the built-in terminal.

Python 3.13.12 (tags/v3.13.12:1cbe481, Feb  3 2026, 18:22:25) [MSC v.1944 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
Ctrl click to launch VS Code Native REPL
>>> " "==" "  
False
>>> " "==" " # copied
True

On Linux at least Ubuntu, it behave correctly as expected.

Python 3.12.3 (main, Mar  3 2026, 12:15:18) [GCC 13.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> " "==" "
False
>>> " "==" " # copied
False

Based on testing multiple versions, it appears that​ version is not a factor.

CPython versions tested on:

3.13

Operating systems tested on:

Windows

Reproduce la comparación en la Windows Python REPL usando tanto el terminal integrado en el sistema operativo como el terminal integrado de VS Code, incluido copiar de nuevo la entrada desde la REPL. Empieza siguiendo el manejo de la entrada del terminal de Windows de la REPL y del copiado y pegado. Se considera terminado cuando un espacio de no separación sigue siendo distinto de un espacio normal y la comparación se evalúa sistemáticamente como false.