From f9b753ca20b7885d076887fe93ffae9e51640dab Mon Sep 17 00:00:00 2001
From: Sam Reid <reids@colorado.edu>
Date: Sat, 27 Aug 2022 11:15:28 -0600
Subject: [PATCH] Fix unlink, see https://github.com/phetsims/tasks/issues/1106

---
 js/intro/view/CellEntry.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/js/intro/view/CellEntry.js b/js/intro/view/CellEntry.js
index 54df0e7c..29c18a1e 100644
--- a/js/intro/view/CellEntry.js
+++ b/js/intro/view/CellEntry.js
@@ -21,7 +21,9 @@ class CellEntry {
     this.node = node;
 
     // @private {function}
-    this.visibilityListener = this.cell.appearsFilledProperty.linkAttribute( node, 'visible' );
+
+    this.visibilityListener = visible => {node.visible = visible;};
+    this.cell.appearsFilledProperty.link( this.visibilityListener );
   }
 
   /**