title: Setting breakpoint at NSKVODeallocateBreak
body: <p>I am playing around with the map kit and I created an annotation.  I am trying to find my bug due to this error:</p>
  
  <blockquote>
    <p>An instance 0x1b7ac0 of class AddressAnnotation was deallocated while key value observers were still registered with it. Observation info was leaked, and may even become mistakenly attached to some other object. Set a breakpoint on NSKVODeallocateBreak to stop here in the debugger. Here's the current observation info:</p>
  </blockquote>
  
  <p>I'm not sure where that NSKVODeallocateBreak to set a breakpoint at is.  I thought I could use Instruments to debug it, but when I try, it crashes without giving me any indication to where it crashed.  Any thoughts?</p>