KRB5_AUTH_CONN_HEIMDAL_SEQ
if (!(ac->auth_context_flags & KRB5_AUTH_CONN_HEIMDAL_SEQ)
ac->auth_context_flags |= KRB5_AUTH_CONN_HEIMDAL_SEQ;
&& !(ac->auth_context_flags & KRB5_AUTH_CONN_HEIMDAL_SEQ)) {
ac->auth_context_flags |= KRB5_AUTH_CONN_HEIMDAL_SEQ;