Registering a mapping before a factory can cause an exception

[JSkimming]

If a mapping from an interface to a concrete class comes before a factory mapping, then an exception will be thrown is the concrete class cannot be instantiated, e.g. it has multiple constructors.

This was discovered when mapping the Amazon S3 client to the interface, like this:

setup
    .Register<IAmazonS3, AmazonS3Client>()
    .RegisterFactory<AmazonS3Client>(CreateAmazonS3Client);

AmazonS3Client CreateAmazonS3Client()
{
    // Factory function implementation.
}

Since AmazonS3Client has multiple public constructors, the single constructor registration throw an exception when visited, but since it will be overridden, it should not throw an error.

If they the registrations are swapped, then no exception is thrown.

setup
    .RegisterFactory<AmazonS3Client>(CreateAmazonS3Client)
    .Register<IAmazonS3, AmazonS3Client>();