fix for wrapped errors inside success callbacks on save, issue #690

backbone.js

@@ -1147,7 +1147,8 @@
 
   // Wrap an optional error callback with a fallback error event.
   var wrapError = function(onError, model, options) {
-    return function(resp) {
+    return function(first, second) {
+      var resp = first === model ? second : first;
       if (onError) {
         onError(model, resp, options);
       } else {

test/model.js

@@ -267,6 +267,22 @@ $(document).ready(function() {
     model.set({lastName: 'Hicks'});
   });
 
+  test("Model: validate after save", function() {
+    var lastError, model = new Backbone.Model();
+    model.validate = function(attrs) {
+      if (attrs.admin) return "Can't change admin status.";
+    };
+    model.sync = function(method, model, options) {
+      options.success.call(this, {admin: true});
+    };
+    model.save(null, {error: function(model, error) {
+      console.log('erroring!');
+      lastError = error;
+    }});
+
+    equals(lastError, "Can't change admin status.");
+  });
+
   test("Model: save", function() {
     doc.save({title : "Henry V"});
     equals(lastRequest[0], 'update');