A ref counting bug in python-ldap caused create and retrieve keytab
feature to fail. Additional tests verify, that
ipaallowedtoperform;write_keys attribute is handled correctly.
See: https://pagure.io/freeipa/issue/7324
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>