If the DNSKEY, CDNSKEY or CDS RRset had different TTLs then the filtering of these RRset resulted in dns_diff_apply failing with "not exact". Identify tuple pairs that are just TTL changes and allow them through the filter.
If the DNSKEY, CDNSKEY or CDS RRset had different TTLs then the filtering of these RRset resulted in dns_diff_apply failing with "not exact". Identify tuple pairs that are just TTL changes and allow them through the filter.