Calling --help on a subcommand does not work

Using the [tutorial](https://learn.microsoft.com/en-us/dotnet/standard/commandline/get-started-tutorial#add-a-subcommand-and-options) as an example: calling the app with `read --help` throws a stack overflow exception.

It looks like it's calling validation on arguments regardless of whether help was invoked or not when `DefaultValueFactory` is set.

Package version: `System.CommandLine@2.0.0-rc.2.25502.107`

This is close to #2707 (which probably shouldn't be closed), but there is no similar recourse in this situation that I can tell. One is not using class configuration, nor is overriding help or version options.