[Bug Report] x-input click 与 blur 事件冲突

[Breezes1993]

VUX version

2.9.2

OS/Browsers version

win10,chrome72.0.3626.109(F12 Pixel ios的设备没问题),node 10.8.0,

Vue version

2.5.2

Code

x-input组件的index.vue 
clear事件和onBlur事件

Steps to reproduce

npm install vue-cli -g # 如果还没安装
vue init airyland/vux2 projectPath
使用x-input，显示clear图标，输入内容，点击clear图标。

What is Expected?

会先触发onblur 之后 clear能够执行

What is actually happening?

会先触发onblur 之后 clear没有执行

[Breezes1993]

vuex版本2.2.0

[Breezes1993]

onBlur ($event) {
  this.setTouched()
  this.validate()
  setTimeout(() => {
    this.isFocus = false
    this.$emit('on-blur', this.currentValue, $event)
  }, 0)
}

onBlur事件加个延时，就运行正常了

[caozhong1996]

see #3778