[Bug Report] el-table highlights a clicked row on sort

[whitecat]

Element UI version

2.4.0

OS/Browsers version

Mac OS High Sierra 10.13.4 (17E199) / Firefox 61.0b12 (64-bit) / Version 67.0.3396.87 (Official Build) (64-bit)

Vue version

2.5.16

Reproduction Link

https://jsfiddle.net/fqbc2xcr/65/

Steps to reproduce

Click on the row with the name Brady (the row should not be highlighted)
Click on Date column title to sort the table
The row with the name Brady becomes highlighted

What is Expected?

Expect the table to be sorted with no highlighting.

What is actually happening?

The row that was clicked on becomes highlighted, even though highlight-current-row is by default false. Sorting seems to make a row highlighted

[jikkai]

Duplicate of #11560

[whitecat]

This commit does not seem to fix the bug. The error is still occurring on any table that has sort functionality on deploy preview: https://deploy-preview-11563--element.netlify.com.