Fixes https://github.com/gui-cs/Terminal.Gui/issues/2238#issuecomment-1323531323.

Terminal.Gui/Views/TextView.cs

@@ -856,7 +856,7 @@ namespace Terminal.Gui {
 			var firstLine = wrappedModelLines.IndexOf (r => r.ModelLine == modelLine);
 			int modelCol = 0;
 
-			for (int i = firstLine; i <= line; i++) {
+			for (int i = firstLine; i <= Math.Min (line, wrappedModelLines.Count - 1); i++) {
 				var wLine = wrappedModelLines [i];
 
 				if (i < line) {