title: UI-router : $state.current.name shows empty
body: <p>Sometimes state which i define is not render and shows blank page.
  And at this time when i try to see from console which state is this, it shows like below.</p>
  
  <p>state name shows empty, which is not defined in my app. </p>
  
  <p><a href="https://i.stack.imgur.com/4snSA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4snSA.png" alt="enter image description here"></a></p>
  
  <p>Anybody know about this issue please help me.</p>