Validation error state won't be reset once it is set when `grouped` and `horizontal` are combined

[Kikuo Emoto]

I found Buefy was not designed to combine grouped and horizontal. Even if we fixed the infinite recursion issue, there would be another issue that once the validation error state is set, it won't be reset after correcting the value.

Originally posted by @kikuomax in #4018 (comment)