[Samba] SAMBA4 & Kerberos exchange question

[Mark Pilant]

I built and configured samba-4.0.0alpha11 on a RedHat Enterprise
Linux 5 system to run as a domain controller in a Windows 2008
Server R2 domain.  While looking at the various Kerberos exchanges
I discovered SAMBA 4 did not follow RFC 4757 for the TGS-REP
exchange, and yet was able to successfully in interact with the
Windows system.  I would like to understand what is happening.

- Mark