It should not return pointers to the internal state,
this matches the way the krb5_init_creds_step() works in MIT.
NOTE: commit 1cdc9d5f3c
"krb5: export krb5_init_creds_step()" exported
krb5_init_creds_step() the first time, but that's
not in any released version, so it should be fine
to change the behavior as there can't be any
external users of the function.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
b0bc54c921