URL Link selected font

[Nikesh Shakya]

I have customized label to have bold font for url links
It works for the first time, but after the link is clicked, the font attribute just invalidates for link...it changes back to normal font

here is my implementation:

self.configureLinkAttribute =  { (type, attributes, isSelected) in
            var atts = attributes
            switch type {
            case .url:
                if self.underlineLink {
                    atts[NSAttributedString.Key.underlineStyle] = NSUnderlineStyle.thick.rawValue
                }
                if let font = self.linkFont {
                    atts[NSAttributedString.Key.font] = font
                }
                break
            default:
                atts[NSAttributedString.Key.underlineStyle] = 0
                break
            }
            return atts
 }