x-input 同时设置 is-type 和绑定 v-model 时会导致每次输入input都会失去焦点

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"echarts": "~3.7.2",
"store": "~2.0.12",
"vue": "~2.4.4",
"vue-router": "~2.6.0",
"vuex": "~2.4.1",
"vux": "~2.9.2",
"webpack-parallel-uglify-plugin": "^1.1.0",
"zepto": "~1.2.0"
},