title: SF Symbol looks distorted
body: <p>When using the new SF Symbols on a UIButton, the symbols seems to be distorted on my iPhone 8, while on an iPhone 11 Simulator everythings fine.
  On the iPhone 8 the symbols seems to squished horizontally making it too tall. I made a gif to illustrate the problem. The gif shows two screenshots transitioning. One from the 8 and one from the 11:</p>
  
  <p><a href="https://gph.is/g/4gB6yqP" rel="nofollow noreferrer">Illustration of the problem</a></p>
  
  <p>Does anyone else have this problem? What is going on here?</p>
  
  <p>Edit:</p>
  
  <p>IB Attributes. The Button is constrained to all for edges of the containing view.</p>
  
  <p>Edit #2: The Symbol is sized properly when specifying a Font for the symbol and scale "Large". I tried SystemFont "Headline".</p>
  
  <p><a href="https://i.stack.imgur.com/7jEWM.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7jEWM.jpg" alt="IB Attributes"></a></p>