fixed logic in showError/showSuccess

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

VDS/Components/TextFields/TextEntryField/TextEntryField.swift

@@ -52,7 +52,27 @@ open class TextEntryFieldBase: EntryField {
  
     open var type: TextEntryFieldType = .text { didSet { didChange() }}
 
-    open var showSuccess: Bool = false { didSet { didChange() }}
+    var _showError: Bool = false
+    open override var showError: Bool {
+        get { _showError }
+        set {
+            if !showSuccess && _showError != newValue {
+                _showError = newValue
+                didChange()
+            }
+        }
+    }
+
+    var _showSuccess: Bool = false
+    open var showSuccess: Bool {
+        get { _showSuccess }
+        set {
+            if !showError && _showSuccess != newValue {
+                _showSuccess = newValue
+                didChange()
+            }
+        }
+    }
         
     open override var state: UIControl.State {
         get {