F7 v3 vue f7-list-input - VeeValidate

i use veevalidate plugin to form validation.
but got some bug

image

https://im2.ezgif.com/tmp/ezgif-2-8ef0ffeaf7ee.gif

when i typing text length is 6, it was not valid.
but when keyin 1 more character or delete, then can valid.

This situation is similar Jquery keydown event.