title: Fabric.js clipping/flipping bug
body: <p>I have a problem, when i'm clipping object or image, and then flipping him, and as result happend something wrong. How to fix this problem? 
  I don't have any idea. 
  Working fiddle: jsfiddle.net/ZxYCP/798/</p>
  
  <p>PS: sorry for my english.</p>
  
  <p><a href="http://joxi.ru/bmoRxqPiR9QGry" rel="nofollow noreferrer">http://joxi.ru/bmoRxqPiR9QGry</a></p>