el-autocomplete input change return undefined

In the last version from element-ui@2.13.1 the component el-autocomplete have an issue when you type anything that is not in the suggestion list and change the focus or keyEnter

Replicate behaviour

- Type a string that is not exist into the suggestion list.

- Click on any part outside the input

Result:
`TypeError: "e.target is undefined"
ui 2.13.1/lib/index.js:1
VueJS 4
ui 2.13.1/lib/index.js:1
VueJS 3`

make reference to the el-input component into the onChange method. this line
`handleChange: function handleChange(event) {
this.$emit('change', event.target.value);
}`