Translation of this issue:

Element UI version

2.13.0

OS/Browsers version

Window10

Vue version

2.6.11

Reproduction Link

https://codepen.io/pride_wu/pen/xxbPdZL

Steps to reproduce

El autocomplete uses remote search to display the suggested content at the first click without making a selection, and then makes it lose focus. When clicking again, it will first display the historical suggestions at the first click, and then load the content at the second click, so that the second time will flash. Official website Liezi can also be reproduced

What is Expected?

After losing focus, it is expected to clear the suggestions

What is actually happening?

After losing focus, the suggestion content is not empty, but the drop-down box is hidden

#18328 同

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不知道此方法是否有其他影响：

1. 组件上增加 ref 和 handleBlur 事件

<el-autocomplete ref="abc"
  v-model="state"
  :fetch-suggestions="querySearchAsync"
  placeholder="请输入内容"
  @select="handleSelect"
  @blur= "handleBlur"
></el-autocomplete>

1. 然后在 blur 事件中增加调用来清空内部的 suggestions 变量：

handleBlur(){
  this.$refs.abc.suggestions = [];
  this.$refs.abc.highlightedIndex = -1;
}