Correctly update the label for student training if called multiple times

openassessment/xblock/static/js/spec/studio/oa_edit_listeners.js

@@ -45,7 +45,7 @@ describe("OpenAssessment.StudentTrainingListener", function() {
         listener = new OpenAssessment.StudentTrainingListener();
     });
 
-    it("updates the label of an option", function() {
+    it("updates the label and points of an option", function() {
         // Initial state, set by the fixture
         assertExampleLabels(
             listener.examplesOptionsLabels(),
@@ -79,6 +79,48 @@ describe("OpenAssessment.StudentTrainingListener", function() {
         );
     });
 
+    it("updates an option twice", function() {
+        // Initial state, set by the fixture
+        assertExampleLabels(
+            listener.examplesOptionsLabels(),
+            {
+                criterion_with_two_options: {
+                    "": "Not Selected",
+                    option_1: "Fair - 1 points",
+                    option_2: "Good - 2 points"
+                }
+            }
+        );
+
+        // Update the option label and points,
+        listener.optionUpdated({
+             criterionName: "criterion_with_two_options",
+             name: "option_1",
+             label: "This is a new label!",
+             points: 42
+        });
+
+        // Update the option again
+        listener.optionUpdated({
+             criterionName: "criterion_with_two_options",
+             name: "option_1",
+             label: "This is YET ANOTHER label!",
+             points: 18
+        });
+
+        // Verify the final state
+        assertExampleLabels(
+            listener.examplesOptionsLabels(),
+            {
+                criterion_with_two_options: {
+                    "": "Not Selected",
+                    option_1: "This is YET ANOTHER label! - 18 points",
+                    option_2: "Good - 2 points"
+                }
+            }
+        );
+    });
+
     it("updates the label of an option with invalid points", function() {
         // If an option has invalid points, the points will be set to NaN
         listener.optionUpdated({

openassessment/xblock/static/js/src/studio/oa_container_item.js

@@ -31,8 +31,8 @@ OpenAssessment.ItemUtilities = {
      element (Jquery Element): The element that represents the object.
      **/
     refreshOptionString: function(element) {
-        var points = $(element).data('points');
-        var label = $(element).data('label');
+        var points = $(element).attr('data-points');
+        var label = $(element).attr('data-label');
         var name = $(element).val();
         // We don't want the lack of a label to make it look like - 1 points.
         if (label === ""){