We are currently in the middle of a domain migration where we are migrating users from one domain to another. On TFS2010 I am using the following commands to migrate users after using the ADMT tool to migrate the user on Active Directory.
C:\Program Files\Microsoft Team Foundation Server 2010\Tools>TFSConfig identitie
s /change /fromdomain:oldomainname /todomain:newdomain /account:tfsuser12 /toaccount:tfsuser12
C:\Program Files\Microsoft Team Foundation Server 2010\Tools>stsadm -o migrateus
er -oldlogin olddomainname\tfsuser12 -newlogin newdomainname\tfsuser12
I then used the TFS Administration Tool 2.1 to check if the users migrated. I can see that the permissions have successfully applied for the migrated user account on Team Foundation Server and SharePoint Roles but not on SQL Server Reporting Services.
We also have a TFS 2008 server where I have the same behaviour.