Kea's lease4-get does not return "client-id": argument if it is NOT set - despite documentation.
lease4-get-by* command, Kea does not return
"client-id": argument if it is NOT set.
There isn't any mention that this argument will not be returned in Kea documentation 16.10.3-16.10.6 or in Appendix "API Reference".
This discrepancy possibly can be crucial in debugging Stork.
Mentioned in kea#1391