[eluser]squidol[/eluser]
sorry but you've misunderstood, i mean retaining the number of input fields not the POST data.
As you can see in the first screenshot i have appended 3 input sets because i clicked + Add interview button thrice. Then, after submitting the form i return to the same view with validation error because i did not fill in name3 field which has the rule "required" and some other fields. The problem is only 1 field is shown instead of 3.