yii-user registration - birthday

Hello all.

I’m having a problem with the yii-user-extension while registrating a user. The problem is, that it is internationalized wrong, showing a default value of “0000-00-00”, indicating a format of “yyyy-mm-dd”. Instead I want the format “dd-mm-yyyy”. Is it possible to make that change?

A similar topic has been posted: yii-user profile fields, which really don’t get answered.