Vue component: Fix changeValidity event when there is an initial value

[bettysteger]

I am having trouble working with the changeValidity event. I would like to set the initial value when the number is empty to true and when not empty it should set wasPreviouslyValid to isValid(), see my change in this PR...

Maybe @carlssonemil can take a look?

The thing is, when pasting an invalid number into the input, I will not get "notified" that the phone number is invalid, because changeValidity is not triggered (because the initial value of wasPreviouslyValid is false).

[carlssonemil]

I did not write that specific code (wasPreviouslyValid) so I'm not entirely sure why it is needed at all. Can't we always do the isValid check when the value changes and emit it, @jackocnr? I.e. remove the wasPreviouslyValid logic? 🤔

[bettysteger]

I did not write that specific code (wasPreviouslyValid) so I'm not entirely sure why it is needed at all. Can't we always do the isValid check when the value changes and emit it, @jackocnr? I.e. remove the wasPreviouslyValid logic? 🤔

@carlssonemil @jackocnr yes that would be nice :D

[joaovinicius]

the same as #1980