Using IDProperty of type Int64 fails to create a database generated value

[tkrajacic]

Describe the bug

When using an Int64 as a primary key, and wanting to let the database generate it automatically, FluentKit fails to recognize this as autogenerated id.

@ID(custom: .id) public var id: Int64?

Using a regular Int type works because this case is specifically handled in FluentKit

@propertyWrapper
public final class IDProperty<Model, Value>
    where Model: FluentKit.Model, Value: Codable
{
    public enum Generator {
        case user
        case random
        case database

        static func `default`<T>(for type: T.Type) -> Generator {
            if T.self is RandomGeneratable.Type {
                return .random
            } else if T.self == Int.self { // <- here
                return .database
            } else {
                return .user
            }
        }
    }
// …
}

Expected behavior

Primary keys of type Int64 should work.

Environment

• Vapor Framework version: 4.67.5
• Vapor Toolbox version: 18.6.0
• OS version: 12.6.2