Fix links not getting cleared on cell reuse

Tusker/Views/ContentLabel.swift

@@ -31,10 +31,10 @@ class ContentLabel: LinkLabel {
         
         mutAttrString.addAttribute(.font, value: font, range: NSRange(location: 0, length: mutAttrString.length))
         
+        self.links = []
         let linkAttributes: [NSAttributedString.Key: Any] = [
             .foregroundColor: UIColor.blue,
         ]
-        
         for (range, url) in links {
             mutAttrString.addAttributes(linkAttributes, range: range)
             self.links.append(Link(range: range, url: url))