Element: [Bug Report] Errors are reporting when the form textarea box is newline: Cannot read property'type'of undefined

[hdmy]

Element UI version

2.6.0

OS/Browsers version

Chorme 72.0.3626.119

Vue version

2.5.18

Reproduction Link

https://jsfiddle.net/api/post/library/pure/

Steps to reproduce

官方网站示例：
http://element-cn.eleme.io/#/zh-CN/component/form

典型表单 - 活动形式

文本款内换行时，会出现

Uncaught TypeError: Cannot read property 'type' of undefined
at e.setFieldValue (onloadwff.js:71)
at HTMLFormElement.formKeydownListener (onloadwff.js:71)

What is Expected?

不应该有报错

What is actually happening?

这里是将textarea当成form表单内普通的input处理，由于field为undefined，导致报错

[element-bot]

Translation of this issue:

Element UI version

2.6.0

OS/Browsers version

Chorme 72.0.3626.119

Vue version

2.5.18

Reproduction Link

https://jsfiddle.net/api/post/library/pure/

Steps to reproduce

Examples of official websites:

Http://element-cn.eleme.io/#/zh-CN/component/form
Typical form-activity form

When a line is changed in a text paragraph, it will appear
Uncaught TypeError: Cannot read property'type'of undefined

At E. setField Value (onloadwff. js: 71)
At HTML FormElement. FormKeydownListener (onloadwff. js: 71)

What is Expected?

There should be no mistake.

What is actually happening?

Here, textarea is treated as a normal input in the form, which results in an error due to undefined field.

[element-bot]

Hi, your JSFiddle page is blank because it seems you forgot to click the Save button. Please save your fiddle and then edit this issue with the new link.

[luckyCao]

Issues without a valid reproduction link will be closed directly.

[hdmy]

坐标广州，翻不翻都无法打开jsfiddle.net，直接通过官方表单示例是可以看到的，在文本框内回车换行，控制台会报错

[ricardosaracino]

Issues without a valid reproduction link will be closed directly.

im having the same issue.

[dreambo8563]

官网就能复现啊...