+5775. [bug] Added a timer in the resolver to kill fetches that
+ have deadlocked as a result of dependency loops
+ with the ADB or the validator. This condition is
+ now logged with the message "shut down hung fetch
+ while resolving '<name>/<type>'". [GL #3040]
+
5774. [func] Restore NSEC Aggressive Cache ("synth-from-dnssec")
as active by default. It is limited to NSEC only
and by default ignores NSEC records with next name