Add Razor Page using Entity Framework (CRUD)

[genifycom]

When I right click on Pages and Add Razor page. I select Razor Pages using Entity Framework (CRUD). I select my Model class and my Data Context class and press Add.

I expect to give the Razor page a name. But a Dialog pops up and says

Add Razor Page(s)

The following file(s) already exist:

Index
Index.cshtml.cs

Do you want to replace them?

Yes No

I do not expect that adding a Razor page will replace Index. I expect to create a NEW razor page with a new name. Saying No here does not allow one to continue.

Steps to reproduce

As above

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Create a new ASP.NET Core Web Application. Use ASP.NET Core 3.0 and "Web Application".
Create a model class (Customer with int ID and string Name).
Add Razor Page using EF and CRUD.
Select Model class and add context class.
Click Add

Further technical details

EF Core version: 3.0
Database provider: (e.g. Microsoft.EntityFrameworkCore.SqlServer)
Target framework: (e.g. .NET Core 3.0)
Operating system: Windows 10
IDE: (e.g. Visual Studio 2019 16.3) Visual Studio 2019 16.3.1