Form re-population with no rules set

[eluser]dmitrybelyakov[/eluser]
Hey!

I experience some problems with new 1.7.0 Validation Class.
When i re-populate the form with submitted data it doesn't actually show up if the field has no rules attached in the controller (with set_rules() function). It may have any rule attached - like required trim or just anything. It just has to be there in the rules list.

This seems strange. Am I the only one who has this problem?

I did some testing with examples from the manual (controller & form view) and the problem remains.
If i remove validation from any of the fields in the tutorial - re-population stops working.

Is this the correct behavior?