Bugfix for using values from view's context prototype.

Fixes #445

mustache.js

@@ -380,13 +380,13 @@
            **/
           while (value != null && index < names.length) {
             if (index === names.length - 1 && value != null)
-              lookupHit = (typeof value === 'object') &&
-                value.hasOwnProperty(names[index]);
+              lookupHit = (typeof value === 'object') && value[names[index]];
+
             value = value[names[index++]];
           }
         } else if (context.view != null && typeof context.view === 'object') {
           value = context.view[name];
-          lookupHit = context.view.hasOwnProperty(name);
+          lookupHit = context.view.hasOwnProperty(name) || Object.prototype[name] !== value;
         }
 
         if (lookupHit)

test/_files/uses_props_from_view_prototype.js

@@ -0,0 +1,30 @@
+var Aaa = (function () {
+  function Aaa(x, y) {
+    this.x = x;
+    this._y = y;
+  }
+  Object.defineProperty(Aaa.prototype, "y", {
+    get: function () {
+      return this._y;
+    },
+    set: function (value) {
+      this._y = value;
+    },
+    enumerable: true,
+    configurable: true
+  });
+  return Aaa;
+})();
+var Bbb = (function () {
+  function Bbb() {
+  }
+  return Bbb;
+})();
+
+var b = new Bbb();
+b.item = new Aaa("0", "00");
+b.items = [];
+b.items.push({ a: new Aaa("1", "2") });
+b.items.push({ a: new Aaa("3", "4") });
+
+(b)

test/_files/uses_props_from_view_prototype.mustache

@@ -0,0 +1 @@
+[{{ item.x }};{{ item.y }}]||{{#items}}[{{ a.x }};{{ a.y }} {{#a}}{{y}}{{/a}}]{{/items}}

test/_files/uses_props_from_view_prototype.txt

@@ -0,0 +1 @@
+[0;00]||[1;2 2][3;4 4]