Forms should only clear after being submitted or a page refresh but not after failed validation

[qumuq-til]

It's not great to require user to input all data in multiple fields again if validation fails for any field. Currently if refresh_prevention is set to true, fields will always clear on failed validation. If set to false, however, fields don't clear after the form had been correctly submitted which is confusing to the user. Refreshing the page should probably give the form a new ID so it could be filled again.

[qumuq-til]

Specifically, problems happen when refresh_prevention is set to true and the form is being repeatedly validated, such as when entering "wrong" values two or more times in a row. The form would then inform you that it had already been submitted when in reality you were only trying to get over field validation error.