Reinstate IntrinsicContentSize check - the bug this was removed to pr…

…event

is fixed by PR #1700.

src/Core/src/Platform/iOS/MauiLabel.cs

@@ -20,6 +20,24 @@ public MauiLabel()
 		public override void DrawText(CGRect rect) =>
 			base.DrawText(TextInsets.InsetRect(rect));
 
+		public override void InvalidateIntrinsicContentSize()
+		{
+			base.InvalidateIntrinsicContentSize();
+
+			if (Frame.Width == 0 && Frame.Height == 0)
+			{
+				// The Label hasn't actually been laid out on screen yet; no reason to request a layout
+				return;
+			}
+
+			if (!Frame.Size.IsCloseTo(AddInsets(IntrinsicContentSize), (nfloat)0.001))
+			{
+				// The text or its attributes have changed enough that the size no longer matches the set Frame. It's possible
+				// that the Label needs to be laid out again at a different size, so we request that the parent do so. 
+				Superview?.SetNeedsLayout();
+			}
+		}
+
 		public override CGSize SizeThatFits(CGSize size) => AddInsets(base.SizeThatFits(size));
 
 		CGSize AddInsets(CGSize size) => new CGSize(