When touched, should validate on keyup

[avimar]

Is your feature request related to a problem? Please describe.
When I have an error message in a field, I expect that as I fix it, the error should go away.
e.g. it says my email is invalid, so I fix it: yyyyy@gmail.com.. but the error is still there. When I click away, the error is gone.

I'd almost describe this as a bug, but I'll settle for a feature request for now.

Describe the solution you'd like
We don't want evaluation on every keyup -- it's uncomfortable for a user to start typing their email and see a big ERROR -- "Dummy, I'm just getting started!" but once an error is shown (or when it's been touched before) I would like the error to disappear as soon as I've fixed it.

Screenshots
https://www.awesomescreenshot.com/video/141161 (upto 22 seconds)

[mdauner]

🎉 This issue has been resolved in version 2.1.2 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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