DYN-8986 Fix graphs opening in a dirty state (#16262)

Author: zeusongit

src/DynamoCoreWpf/Views/Core/AnnotationView.xaml.cs

@@ -235,7 +235,10 @@ private void GroupTextBox_OnTextChanged(object sender, TextChangedEventArgs e)
 
             SetTextMaxWidth();
             SetTextHeight();
-            ViewModel.WorkspaceViewModel.HasUnsavedChanges = true;
+            if (GroupTextBox.ActualHeight > 0 && GroupTextBox.ActualWidth > 0)
+            {
+                ViewModel.WorkspaceViewModel.HasUnsavedChanges = true;
+            }
         }
 
 
@@ -355,7 +358,10 @@ private void GroupDescriptionTextBox_TextChanged(object sender, TextChangedEvent
             if (ViewModel is null || !IsLoaded) return;
 
             SetTextHeight();
-            ViewModel.WorkspaceViewModel.HasUnsavedChanges = true;
+            if (GroupDescriptionTextBox.ActualHeight > 0 && GroupDescriptionTextBox.ActualWidth > 0)
+            {
+                ViewModel.WorkspaceViewModel.HasUnsavedChanges = true;
+            }
 
         }