fix

Author: Eugene Tupikov

assets/src/js/jquery.multipleInput.js

@@ -45,14 +45,15 @@
             var intervalID = setInterval(function(){
                 if (typeof form.data('yiiActiveForm') === 'object') {
                     var attribute = form.yiiActiveForm('find', id);
-                    if (attribute !== false) {
+                    if (typeof attribute === 'object') {
                         $.each(attribute, function (key, value) {
                             if (['id', 'input', 'container'].indexOf(key) == -1) {
                                 wrapper.data('multipleInput').attributeDefaults[key] = value;
                             }
                         });
+                        form.yiiActiveForm('remove', id);
                     }
-                    form.yiiActiveForm('remove', id);
+
                     wrapper.find('.multiple-input-list').find('input, select, textarea').each(function () {
                         methods.addAttribute.apply(this);
                     });