radio button picker fix for #105

Author: Hendy

source/nuPickers/Shared/RadioButtonPicker/RadioButtonPickerEditor.html

@@ -9,8 +9,7 @@
                        ng-name="radioButtonPicker"
                        value="{{option.key}}"
                        ng-model="$parent.pickedKey"
-                       ng-checked="option.key == $parent.pickedKey"
-                       ng-change="radioButtonChange()" />
+                       ng-checked="option.key == $parent.pickedKey" />
 
                 <span ng-bind-html-unsafe="option.label"></span>
             </label>

source/nuPickers/Shared/RadioButtonPicker/RadioButtonPickerEditorController.js

@@ -11,10 +11,6 @@ angular
                     $scope.pickedKey = pickedKeys[0];
                 });
 
-                $scope.radioButtonChange = function () {
-                    $scope.model.value = editorResource.createSaveValue($scope.model.config, [$scope.getPickedOption()]);
-                };
-
                 // get picked option by copying a matching one by key from the source
                 $scope.getPickedOption = function () {
 
@@ -36,4 +32,8 @@ angular
 
             });
 
+            $scope.$on("formSubmitting", function () {
+                $scope.model.value = editorResource.createSaveValue($scope.model.config, [$scope.getPickedOption()]);
+            });
+
         }]);