CSharpClient code generator issues

[MihaMarkic]

I'm looking at this OpenAPI 3 schema: Bankart and C# generator generates wrong code (syntax error) on two issues:

• ThreeDSecureData.3dsecure property - it generates constructor like public ThreeDSecureData(ThreeDSecureData_3dsecure? @3dsecure, ... where argument name can't start with a number and should be prefixed with an underscore public ThreeDSecureData(ThreeDSecureData_3dsecure? @_3dsecure instead. '@' doesn't do anything.
• For some reasons it creates references to CLASS_NAME2 (it postfixes 2 to class name), like in Customer's paymentData argument - PaymentData2 instead of PaymentData) sometimes.