title: ExtJS 5 - Chained Store Binding with Form Field Error (MVVM)
body: <p>anyone who tried and succeeded binding form fields with chainedstore in ExtJs 5 with MVVM pattern?
  It works well with grid but not for the textfield, radio or checkbox. Struggling for a week but no luck yet.</p>
  
  <p>Here is fiddle,
  <a href="https://fiddle.sencha.com/#fiddle/7cn" rel="nofollow">https://fiddle.sencha.com/#fiddle/7cn</a></p>
  
  <p>Expecting value but it keeps showing [object Object] no matter what :-(
  Also expect the binding when removing the teen record from {everyone} grid.</p>
  
  <p>Best regards,
  Chad</p>