On blur and on focus event on VsTextarea not working

[nmfzone]

Environment

MacOSX High Sierra

Vuesax v3.8.18
Node v10.13.0
Yarn v1.12.3
Google Chrome v72.0

Reproduction link

https://codesandbox.io/s/xjo8m6j75p

Steps to reproduce

1. Install and setup vuesax

2. Use vs-textarea in your component

3. Listen on blur event from the vs-textarea

   <template>
       <vs-textarea
           v-model="textarea"
           @blur="doSomething" />
   ...
   

What is expected ?

The doSomething should be executed.

What is actually happening?

The doSomething not getting executed.