6116. [bug] Fix error path cleanup issue in the dns_catz_new_zones()
function. [GL #3900]
+6115. [bug] Unregister db update notify callback before detaching
+ from the previous db inside the catz update notify
+ callback. Also, call the db notify callbacks only after
+ zone_postload() returns successfully. [GL #3777]
+
6105. [bug] Detach 'rpzs' and 'catzs' from the previous view in
configure_rpz() and configure_catz(), respectively,
just after attaching it to the new view. [GL #3880]