title: calloutAccessoryControlTapped not called in storyboard
body: <p>I have a view containing a MKMapView, I display sereval pins in it:</p>
  
  <pre><code>- (MKAnnotationView *)mapView:(MKMapView *)theMapView viewForAnnotation:(id &lt;MKAnnotation&gt;)annotation
  {
    NSLog(@"mapView:viewForAnnotation");
  
    // if it's the user location, just return nil.
    if ([annotation isKindOfClass:[MKUserLocation class]]){
        return nil;
    }
  
    static NSString* AnnotationIdentifier = @"AnnotationIdentifier";
    MKPinAnnotationView *pinView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationIdentifier];
    pinView.canShowCallout = YES;
    pinView.pinColor = MKPinAnnotationColorPurple;
    pinView.annotation = annotation;    
  
    return pinView;
  }
  </code></pre>
  
  <p>This is working fine but the method:</p>
  
  <pre><code>-(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
  </code></pre>
  
  <p>is not called when the pin is clicked. It seems the click event is not transmitted to the pin but I cannot figure out why. Any idea ?</p>