title: How can I find out if the superclass also implements the same method that my subclass implements?
body: <p>I want to know if the superclass implements method A from my subclass, which also implements method A, so that I can safely call [super A] from my subclass without getting an exception. </p>
  
  <p>NSObject's respondsToSelector: doesn't work in this case, since that will always return true (because my subclass implements the method in question). Any ideas?</p>