github上的mui, numbox有bug

github上把numbox的input的change事件注释了，导致加减的时候不能执行checkvalue。引发一系列问题

github上的是

        initEvent: function() {  
            var self = this;  
            self.plus.addEventListener(tapEventName, function(event) {  
                var val = parseInt(self.input.value) + self.options.step;  
                self.input.value = val.toString();  
                $.trigger(self.input, changeEventName, null);  
            });  
            self.minus.addEventListener(tapEventName, function(event) {  
                var val = parseInt(self.input.value) - self.options.step;  
                self.input.value = val.toString();  
                $.trigger(self.input, changeEventName, null);  
            });  
//          self.input.addEventListener(changeEventName, function(event) {  
//              self.checkValue();  
//              $.trigger(self, changeEventName, self.getValue());  
//          });  
        },

Hbuilder上新建的Hello mui中

initEvent: function() {  
            var self = this;  
            self.plus.addEventListener(tapEventName, function(event) {  
                var val = parseInt(self.input.value) + self.options.step;  
                self.input.value = val.toString();  
                $.trigger(self.input, changeEventName, null);  
            });  
            self.minus.addEventListener(tapEventName, function(event) {  
                var val = parseInt(self.input.value) - self.options.step;  
                self.input.value = val.toString();  
                $.trigger(self.input, changeEventName, null);  
            });  
            self.input.addEventListener(changeEventName, function(event) {  
                self.checkValue();  
                $.trigger(self, changeEventName, self.getValue());  
            });  
        },