title: UILabel attributed text can't have multiple lines if you change baseline offset attribute
body: <p>I want to change brackets's baseline offset in a words, like "[推]blablabla".</p>
  
  <pre><code>NSRange range = [text rangeOfString:@"[推]"];
  if (range.location == 0) {
      [text addAttribute:NSBaselineOffsetAttributeName value:@(0.5) range:NSMakeRange(0, 1)];
      [text addAttribute:NSBaselineOffsetAttributeName value:@(0.5) range:NSMakeRange(range.length-1, 1)];
  }
  </code></pre>
  
  <p>but the second line of the label disappears and gets truncated. Anyone have an idea?</p>