I have set so that my MKMapView shows the current location. I also have a custom pin implemented for other pins. However, it turns out the current location shows as a custom pin, whereas I just wanted it to be a regular blue circle (like what google map has).

I have defined the following in my code:

```
- (MKAnnotationView *) mapView: (MKMapView *) mapView viewForAnnotation: (id<MKAnnotation>) annotation MKAnnotationView *pin = (MKAnnotationView *) [self.mapView dequeueReusableAnnotationViewWithIdentifier: @"VoteSpotPin"];
    if (pin == nil)
    {
        pin = [[[MKAnnotationView alloc] initWithAnnotation: annotation reuseIdentifier: @"TestPin"] autorelease];
    }
    else
    {
        pin.annotation = annotation;
    }

    [pin setImage:[UIImage imageNamed:@"TestPin.png"]];
    pin.canShowCallout = YES;
    pin.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    return pin;
}

```

How can I prevent the current location to show up as a pin?