title: ios7 textfield shouldchangecharactersinrange is not called when a word is selected from autocorrection bar
body: <p><code>UITextField</code> <code>shouldChangeCharactersInRange</code> <code>delegate</code> method is not called when a word is selected from autocorrection bar with simplified Chinese keyboard. When I type 'ni hao', this <code>delegate</code> method gets called for each character, but when I selected a word from autocorrect suggestion bar this delegate method is not called. This is only happening in <code>iOS 7</code> with simplified chinese, it is working fine with japanese keyboard. I want to do my application specific action when selecting the word. Any help is much appreciated. </p>