Fix Cache read_multi with local_cache return values.

It should returns raw value, not instance of `ActiveSupport::Cache::Entry`.

activesupport/lib/active_support/cache/strategy/local_cache.rb

@@ -55,7 +55,14 @@ def read_entry(key, options)
           end
 
           def read_multi_entries(keys, options)
-            Hash[keys.map { |name| [name, read_entry(name, options)] }.keep_if { |_name, value| value }]
+            values = {}
+
+            keys.each do |name|
+              entry = read_entry(name, options)
+              values[name] = entry.value if entry
+            end
+
+            values
           end
 
           def write_entry(key, value, options)

activesupport/test/cache/behaviors/local_cache_behavior.rb

@@ -129,6 +129,18 @@ def test_local_cache_of_fetch_multi
     end
   end
 
+  def test_local_cache_of_read_multi
+    @cache.with_local_cache do
+      @cache.write("foo", "foo", raw: true)
+      @cache.write("bar", "bar", raw: true)
+      values = @cache.read_multi("foo", "bar")
+      assert_equal "foo", @cache.read("foo")
+      assert_equal "bar", @cache.read("bar")
+      assert_equal "foo", values["foo"]
+      assert_equal "bar", values["bar"]
+    end
+  end
+
   def test_middleware
     app = lambda { |env|
       result = @cache.write("foo", "bar")