temporary fixed mustache index calculation with simple can.List when remove first item of list

view/mustache/mustache.js

@@ -1899,9 +1899,10 @@ function( can ){
 					// Create a compute that listens to whenever the index of the item in our list changes.
 					var index = function() {
 						var exprResolved = Mustache.resolve(expr),
-							fromIndex    = key < (exprResolved).attr('length') ? key : undefined;
-
-						return (exprResolved).indexOf(item, fromIndex);
+							fromIndex    = key < (exprResolved).attr('length') ? key : undefined,
+							index 		 = (exprResolved).indexOf(item, fromIndex);
+						console.log(item,index);
+						return index === -1 ? 0 : index;
 					};
 					return options.fn( options.scope.add({"@index": index}).add(item) );
 				});

view/mustache/mustache_test.js

@@ -2410,6 +2410,20 @@ test("Rendering live bound indicies with #each, @index and a simple can.List", f
 	equal(lis[2].innerHTML, '2 e', "fifth item now the 3rd item");
 });
 
+test("Rendering live bound indicies with #each, @index and a simple can.List when remove first item", function() {
+	var list = new can.List(['a', 'b', 'c']);
+	var template = can.view.mustache("<ul>{{#each list}}<li>{{@index}} {{.}}</li>{{/each}}</ul>");
+
+	var lis = template({list: list}).childNodes[0].getElementsByTagName('li');
+
+	// remove first item
+	list.shift();
+	equal(lis.length, 2, "two lis");
+
+	equal(lis[0].innerHTML, '0 b', "second item now the 1st item");
+	equal(lis[1].innerHTML, '1 c', "third item now the 2nd item");
+});
+
 test('Rendering keys of an object with #each and @key', function() {
 	delete can.Mustache._helpers['foo'];
 	var template = can.view.mustache("<ul>{{#each obj}}<li>{{@key}} {{.}}</li>{{/each}}</ul>");