Model reload method should not silently fail to reload

[lisad]

In my tests, trying to modify a model then reload it to see if the modification method worked, I tried

    it "updates the event" do
      controller.book_plan(message)
      event_reload = Event.find(event.id).reload
      event_reload.event_plan_id.should == new_plan.id
    end

However it didn't work until I added

    it "updates the event" do
      controller.book_plan(message)
      Dynamoid::IdentityMap.clear
      event_reload = Event.find(event.id).reload
      event_reload.event_plan_id.should == new_plan.id
    end

I can't explain what's going on because I see there are rspec tests to make sure that reload works. Perhaps it's because in my setup caching is enabled ( config.identity_map = true) -- I don't see that toggled in the spec that tests reload in Dynamoid.