The [Bug Report] select component does not have the correct scroll bar position.

[jin9999]

Element UI version

1.4.1

OS/Browsers version

win7/chrome

Vue version

2.4.2

Reproduction Link

http://element.eleme.io/#/zh-CN/component/select
分组例子可重现。

Steps to reproduce

1.点击选择框，滚动鼠标，让下拉框滚动到最底部。
2.选择“上海”。
3.再次点击下拉框，滚动条仍然显示在底部，但向上滚动鼠标滚动条不会向上滚动，因为列表值已经是在顶部了。向下滚动是有效的。说明滚动条位置是不正确的。

What is Expected?

滚动条能正确的显示位置。

What is actually happening?

滚动条位置不正确。

[element-bot]

Translation of this issue:

Element UI version

1.4.1

OS/Browsers version

Win7/chrome

Vue version

2.4.2

Reproduction Link

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

Steps to reproduce

1. click the select box, scroll the mouse, and scroll down to the bottom.

2. choose "Shanghai"".

3. click the dropdown again, and the scroll bar still appears at the bottom, but scroll up the mouse scroll bar without scrolling up, because the list value is already at the top. Scroll down is valid. Indicates that the scroll bar position is incorrect.

What is Expected?

The scroll bar position is incorrect.

What is actually happening?

The scroll bar shows the correct position.

[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.

[Leopoldthecoder]

请更新 demo 链接。

[qingdengyue]

#6271

[Leopoldthecoder]

Fixed in 6a99f03#diff-77681c030d3f0bb43a843a628ce7018cR421