DateItem setEnforceDate

Hi

I have DateItem with text field where user manually may enter date as text.
If there is for example 2013-11-33 the value is replaced by 2013-12-03.
I set enforce date to true which shows field as invalid, but DynamicForm.validate return true instead of false.
Is there any setter on DateItem that DynamicForm.validate will return false in this case without need to implement custom validator?