Issue Scaffolding Identity source generators.

### Description

When I am using Visual Studio 2022 I want to sometimes scaffold Identity pages so that I can override the themes. In my .NET 5 project I go to Root Node Right Click and select New Scaffolding Item, I get dialog with options to overide the files

### Configuration

Here is the log file form the cache

[Microsoft.VisualStudio.Default - Copy.txt](https://github.com/dotnet/core/files/7150400/Microsoft.VisualStudio.Default.-.Copy.txt)

### Regression?

### Other information
This is the info I have in my cs project.

net5.0







all
runtime; build; native; contentfiles; analyzers; buildtransitive





all
runtime; build; native; contentfiles; analyzers; buildtransitive