Cursor does not point appropriate position when using Japanese in LineEditor.ReadLine

[itn3000]

Overview

When input Japanese string in LineEditor.ReadLine, unexpected behavior on cursor position and output.

Environment

version: 0.10.0
platform: windows-11x64
dotnet-sdk: 10.0.203
terminal: windows terminal with powershell-7.6.0, vscode terminal with powershell-7.6.0

Steps to reproduce

1. write following code(file based app)
2. run code by dotnet run test.cs
3. input Japanese string(like あいうえお), copy and paste is also OK

#:package RadLine@0.10.0

using RadLine;

var editor = new LineEditor();
var l = await editor.ReadLine(default);

Console.WriteLine(l);

Expected

rendered あいうえお after prompt and cursor is placed end of line, like following

> あいうえお_ # '_' is cursor positoin

Actual

rendered as following

> あい                                                                                                                                                 
> あいう                                                                                                                                               
> あいうえ                                                                                                                                             
> あいうえお                                                                                                                                           
> あいうえお
     _ # '_' is cursor position

Additional Info

I tested on AnsiConsole.AskAsync<string> in Spectre.Console-0.55.2, work as I expected