Form validation shouldn't trim values before validation

[Gaffi81]

Form validator trims whitespaces from values before validation, which is really unwanted.
For example, " 123" validates as "integer".
Or " aaaa" validates against regexp[/^[a-z0-9]*$/i], but it shouldn't, as space is not a valid char, but the validator receives the form value as space-trimmed...

Currently I have to add custom validators, which validates against input value instead of the "value" param...

[stale]

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