title: "Bold Text" affects autolayout calculations?
body: <p>A very strange problem occurred when I use autolayout to constrain my views.
  <a href="https://i.stack.imgur.com/Cyumn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Cyumn.png" alt="enter image description here" /></a></p>
  <p>The icon's (in the red rectangle) width and height are both constrained to 36 pt as shown in the bottom right corner. But the bounds resolved by the autolayout engine equals to (0, 0, 37, 37).</p>
  <p>The only happens when the &quot;Bold Text&quot; option is set.
  <a href="https://i.stack.imgur.com/hnbWP.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hnbWP.jpg" alt="enter image description here" /></a></p>
  <p>When &quot;Bold Text&quot; option is off, this problem disappears.</p>