Add notes to the 'fetches-per-zone' and 'fetches-per-server' clauses
documentation to document that prefetches are exempted.
(cherry picked from commit ad329ddcaa)
Add notes to the 'fetches-per-zone' and 'fetches-per-server' clauses
documentation to document that prefetches are exempted.
(cherry picked from commit ad329ddcaa)