Added change to ensure that custom options for RichEditToolbar are cleared when the control is unloaded to ensure that they are correctly re-initialized

Author: jamesmcroft

src/MADE.UI.Controls.RichEditToolbar/RichEditToolbar.cs

@@ -51,6 +51,7 @@ public partial class RichEditToolbar : Control, IRichEditToolbar
         public RichEditToolbar()
         {
             this.DefaultStyleKey = typeof(RichEditToolbar);
+            this.Unloaded += OnUnloaded;
         }
 
 #if WINDOWS_UWP
@@ -167,6 +168,16 @@ private void SetupCustomOptions()
             }
         }
 
+        private void OnUnloaded(object sender, RoutedEventArgs e)
+        {
+            this.ClearCustomOptions();
+        }
+
+        private void ClearCustomOptions()
+        {
+            this.CustomOptions?.Clear();
+        }
+
         private void ResetCustomOptions()
         {
             if (this.Toolbar == null || this.CustomOptions == null)