title: NSTableView doesn't populate with array objects until a new object is added via the controller
body: <p>I have an NSTableView and an array controller set up as shown here, using cocoa bindings: <a href="https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/TableView/PopulatingViewTablesWithBindings/PopulatingView-TablesWithBindings.html#//apple_ref/doc/uid/10000026i-CH13-SW3" rel="nofollow">https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/TableView/PopulatingViewTablesWithBindings/PopulatingView-TablesWithBindings.html#//apple_ref/doc/uid/10000026i-CH13-SW3</a></p>
  
  <p>In my app delegate during applicationDidFinishLaunching I have the following snippet in here, initialising the array and filling it with objects</p>
  
  <pre><code>array = [[NSMutableArray alloc] init];
  
  SomeObject* foo = [[Object alloc] init];
  foo.text = @"sup";
  [array addObject:foo]; //Repeat this a few times
  </code></pre>
  
  <p>However, when I build the app and run it I end up with an empty table. However, if I bind a button to the array controller's add: input and click it during runtime (this adds a new object to the array and table) then the table will show the new object first, with the objects added during applicationDidFinishLaunching following it. </p>
  
  <p>Why does this happen? And is there a way to make my table populate without having to add an element first?</p>