fixed bug where someone could nil out attributedText and resetting the text with the same value wouldn't trigger setNeedsUpdate()

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDS/Components/Label/Label.swift

@@ -135,15 +135,15 @@ open class Label: UILabel, ViewProtocol, UserInfoable {
     override open var text: String? {
         get { _text }
         set {
-            if _text != newValue {
+            if _text != newValue || newValue != attributedText?.string {
                 _text = newValue
                 useAttributedText = false
-                attributes = nil
+                attributes?.removeAll()
                 setNeedsUpdate()
             }
         }
     }
-
+    
     /// Whether the View is enabled or not.
     open override var isEnabled: Bool { didSet { setNeedsUpdate() } }