I't my strong guess that no packages in debian outside of krb5 itself
depend on the init_creds_step API, and that is very probably true for
Ubuntu as well. That's one of the main reasons upstream wants to fix it
now: we believe we can do it painlessly if we act before Debian, Ubuntu,
Redhat or Solaris release with the incorrect API.
I't my strong guess that no packages in debian outside of krb5 itself
depend on the init_creds_step API, and that is very probably true for
Ubuntu as well. That's one of the main reasons upstream wants to fix it
now: we believe we can do it painlessly if we act before Debian, Ubuntu,
Redhat or Solaris release with the incorrect API.