Improve NSEC(3) chain fixing
Currently, whole chain is created anew - that takes a lot of time, especially for NSEC3 zones. We can reuse changeset info to fix only part of the chain. This could be later used with zonediff as well.
Currently, whole chain is created anew - that takes a lot of time, especially for NSEC3 zones. We can reuse changeset info to fix only part of the chain. This could be later used with zonediff as well.