[BUG][csharp-netcore] Compilation-Error if you have a property named Validate in your schema ("already contains a definition for 'Validate'")

[Cyber1000]

Description

• If you have a property named Validate in your schema you end up with two validates (one property "validate" and a method named "Validate" from your side.

- Property Validate also generated:

openapi-generator version

6.2.1

OpenAPI declaration file content or url

openproject-api (so I can't change it on my own): https://community.openproject.org/api/v3/spec.yml

Generation Details

openapi-generator-cli generate -i https://community.openproject.org/api/v3/spec.yml -g csharp-netcore -o api --additional-properties=sourceFolder=src,optionalProjectFile=false,excludeTests=true

Suggest a fix

• Maybe rename your Method to Validate1 (or better), if you find a property Validate in a single class
  • no idea how complicated this would be, think you're using a template

[Cyber1000]

ok seeing an Interface IValidatableObject, which prevents renaming of Validate

the solution then would be to change it to an explicit interface implementation (https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/interfaces/explicit-interface-implementation):

So instead of public IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> Validate(ValidationContext validationContext) change it to IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext) (without public and explicit IValidatableObject)
This compiles and should have no side effects as far as I know.