updated the comment

SyedAbdulAzeemSF4852 · SyedAbdulAzeemSF4852 · commit ffc43a0609fe · 2026-03-30T17:53:54.000+05:30
diff --git a/src/Controls/src/Core/Label/Label.cs b/src/Controls/src/Core/Label/Label.cs
@@ -376,7 +376,8 @@ static void OnTextPropertyChanged(BindableObject bindable, object oldvalue, obje
 			var wasEmpty = string.IsNullOrEmpty(oldvalue as string);
 			var isEmpty = string.IsNullOrEmpty(newvalue as string);
 
-			// Always invalidate when text transitions between empty and non-empty,
+			// Always invalidate when text transitions between empty and non-empty
+			// for labels that can grow in at least one direction (IsLabelSizeable),
 			// even for single-line horizontally-fixed labels (e.g. TailTruncation in
 			// a VerticalStackLayout), because the label height changes from 0 to line height.
 			if (TextChangedShouldInvalidateMeasure(label) || (wasEmpty != isEmpty && IsLabelSizeable(label)))
