[Bug Report] el-autocomplete clearable can not trigger suggestion callback

[zhidanwang19910111]

Element UI version

2.11.1

OS/Browsers version

macOS 10.13 / chrome 79

Vue version

2.6.11

Reproduction Link

https://codepen.io/zhidanwang19910111/pen/GRJmBwg

Steps to reproduce

1. el-autocomplete input '三', and then click clear icon
2. then auto focus on input and input '三' again

What is Expected?

after clicking clear icon, auto focus input, and inputing something can show suggestion list

What is actually happening?

suggestion hide,can not show again, unless blur ,and focus again

[ray007]

The clear-icon produces no event, neither select nor clear or change.

[1008611]

can use @input,but can not call back... first blur,then focus again can call back

    handleInput() {
        console.log(this.selectValue)
        if (this.selectValue == '') {
          this.resultOptions = []
          this.$refs.mInput.$el.querySelector('input').blur()
          this.$nextTick(() => {
             this.$refs.mInput.focus()
          })
        }
      },

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.