title: What is the meaning of the "no index path for table cell being reused" message in iOS 6/7?
body: <p>Since starting to compile my app with iOS 6 (and since also iOS 7) I've started seeing this message.  I know that the way that UITableViews go about managing cells is different in iOS 6 but I haven't needed to modify my code for it to keep working.  But I'm concerned this message may point to some potential issue that I'm not yet seeing.
  Can anyone shed any light?</p>