[krbdev.mit.edu #7706] Export/Import creds breaks with delegated credentials

[Simo Sorce via RT]

I am trying to combine obtaining delegated credentials via constrained
delegation and then exporting them to reimport them in a different
process via gss_export_cred/gss_import_cred.
This does not work. After import the new process fails to be able to
obtain a ticket for the target service using the delegated credentials.