fix recursion in Form object.

lib/widget.js

@@ -3331,7 +3331,7 @@ Form.prototype.submit = function() {
   var self = this
     , out = {};
 
-  (function get(el) {
+  this.children.forEach(function fn(el) {
     if (el.value != null) {
       var name = el.name || el.type;
       if (Array.isArray(out[name])) {
@@ -3342,8 +3342,8 @@ Form.prototype.submit = function() {
         out[name] = el.value;
       }
     }
-    el.children.forEach(get);
-  })(this);
+    el.children.forEach(fn);
+  });
 
   this.emit('submit', out);
 
@@ -3355,7 +3355,7 @@ Form.prototype.cancel = function() {
 };
 
 Form.prototype.reset = function() {
-  (function clear(el) {
+  this.children.forEach(function fn(el) {
     switch (el.type) {
       case 'screen':
         break;
@@ -3419,8 +3419,8 @@ Form.prototype.reset = function() {
         el.clearInput();
         return;
     }
-    el.children.forEach(clear);
-  })(this);
+    el.children.forEach(fn);
+  });
 
   this.emit('reset');
 };