[v9_18] Add some dnssec-policy configuration checks
If a dnssec-policy has multiple keys configured with the same algorithm and role.
(cherry picked from commit f54dad00)
Closes #1601 (closed), #1611 (closed)
Edited by Michał Kępień
If a dnssec-policy has multiple keys configured with the same algorithm and role.
(cherry picked from commit f54dad00)
Closes #1601 (closed), #1611 (closed)