title: model values not trim automatically in angular 2
body: <p>I am using angular 2 form validation, I set required validation on text box, when I enter nothing into textbox it shows required error message it is ok but when I enter only spaces then it does not show required error message, which means angular 2 not trim the model values.</p>
  
  <p>In angular 1.x it automatically trims the model values but in angular 2 I don't see this feature.</p>