Element: [Bug Report] Select "default-first-option" Not Work with "filterable remote" Attributes, but Success Only with "filterable"

[kevinheyo]

Element UI version

1.3.4

OS/Browsers version

Win 7 / Chrome 58

Vue version

2.3.3

Reproduction Link

https://jsfiddle.net/o4be623j/

Steps to reproduce

There are 2 select components in this Jsfiddle.

The left one only contains "filterable" attribute. You can key "A" and press Enter to select the first option.

The right one contains both "filterable" and "remote" attributes, and the "default-first-option" doesn't work !!

What is Expected?

The Select Component with "filterable" and "remote" attributes should work properly with "default-first-option" attribute.

What is actually happening?

Can't use enter to select the first option.

[Leopoldthecoder]

@wacky6 Is default-first-option not supposed to be working with remote?

[wacky6]

Seems it does not work when drop-down list opens for the first time.
Will look into it.

[wacky6]

@kevinheyo
Please verify: https://jsfiddle.net/4fkLahzf/1/

Forgot to deal with async remote/filter method when I first implemented this feature.

[kevinheyo]

@wacky6
I can select the first option now. Thank you very much!