Validate and normalize a whole submission (e.g. a native form reply): unknown
keys are dropped, missing optional fields are omitted, values are coerced to
the FormValues types. t localizes the error messages (default: built-in
Spanish core.form.*; the form runtime passes c.t).
Validate and normalize a whole submission (e.g. a native form reply): unknown keys are dropped, missing optional fields are omitted, values are coerced to the FormValues types.
tlocalizes the error messages (default: built-in Spanishcore.form.*; the form runtime passesc.t).