AS::Cache#fetch fully skip the read operation when force: true

It makes little sense to emit a `:read` event given we explictly
asked not to read.

Author: byroot

activesupport/lib/active_support/cache.rb

@@ -362,12 +362,14 @@ def fetch(name, options = nil, &block)
           key = normalize_key(name, options)
 
           entry = nil
-          instrument(:read, name, options) do |payload|
-            cached_entry = read_entry(key, **options, event: payload) unless options[:force]
-            entry = handle_expired_entry(cached_entry, key, options)
-            entry = nil if entry && entry.mismatched?(normalize_version(name, options))
-            payload[:super_operation] = :fetch if payload
-            payload[:hit] = !!entry if payload
+          unless options[:force]
+            instrument(:read, name, options) do |payload|
+              cached_entry = read_entry(key, **options, event: payload)
+              entry = handle_expired_entry(cached_entry, key, options)
+              entry = nil if entry && entry.mismatched?(normalize_version(name, options))
+              payload[:super_operation] = :fetch if payload
+              payload[:hit] = !!entry if payload
+            end
           end
 
           if entry