Wrong warning for static events

[tom-englert]

public class Test5
{
    public static event EventHandler SomeEvent;

    public static void RaiseTheEvent(object sender)
    {
        var eventHandler = SomeEvent;
        if (eventHandler != null)
        {
            eventHandler(sender, EventArgs.Empty);
        }
    }
}

Here we get this warning:
The Boolean condition eventHandler != null always evaluates to a constant value. If it (or its negation) appear in the source code....

If no event handler is attached to SomeEvent, it is null.