Allow direct reference to an observable view model within a 'with' bi…

…nding using $rawData

spec/defaultBindings/withBehaviors.js

@@ -176,4 +176,20 @@ describe('Binding: With', function() {
         viewModel.topitem(null);
         expect(testNode).toContainHtml("hello <!-- ko with: topitem --><!-- /ko -->");
     });
+
+    it('Should provide access to an observable viewModel through $rawData', function() {
+        testNode.innerHTML = "<div data-bind='with: item'><input data-bind='value: $rawData'/></div>";
+        var item = ko.observable('one');
+        ko.applyBindings({ item: item }, testNode);
+        expect(testNode.childNodes[0]).toHaveValues(['one']);
+
+        // Should update observable when input is changed
+        testNode.childNodes[0].childNodes[0].value = 'two';
+        ko.utils.triggerEvent(testNode.childNodes[0].childNodes[0], "change");
+        expect(item()).toEqual('two');
+
+        // Should update the input when the observable changes
+        item('three');
+        expect(testNode.childNodes[0]).toHaveValues(['three']);
+    });
 });

src/binding/defaultBindings/ifIfnotWith.js

@@ -20,7 +20,7 @@ function makeWithIfBinding(bindingKey, isWith, isNot, makeContextCallback) {
                         if (!isFirstRender) {
                             ko.virtualElements.setDomNodeChildren(element, ko.utils.cloneNodes(savedNodes));
                         }
-                        ko.applyBindingsToDescendants(makeContextCallback ? makeContextCallback(bindingContext, dataValue) : bindingContext, element);
+                        ko.applyBindingsToDescendants(makeContextCallback ? makeContextCallback(bindingContext, valueAccessor) : bindingContext, element);
                     } else {
                         ko.virtualElements.emptyNode(element);
                     }