Refactoring of the get_principal() code in commit
b5876f30d4 broke handling of enterprise
principal lookup for AS request (kinit -E user@ipa.test@IPA.TEST).
Related: https://pagure.io/freeipa/issue/8319
Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>