title: Checkbox not checked when clicked in IE 8 and below using knockout binding
body: <p>I'm having an issue with the following checkbox in IE 8 and below not being checked:</p>
  
  <pre><code>&lt;input type="checkbox" data-bind="event: { change: $parent.addOtherAddresses }, attr: { value: $index() + 1 }"  /&gt;
  </code></pre>
  
  <p>I'm trying to pass an entire object to 'addOtherAddresses', which it actually does and works fine, however the browser does not show the checkbox as actually being checked.</p>
  
  <p>I've tried other solutions that display the check in the checkbox but only return the id or value of the checkbox, I need the entire parent data object returned so I can do other logic based on whats been checked.</p>
  
  <p>Thanks for the help.</p>