attachment_fu and validations

Hi

I have a model with the attachment_fu data and two other fields (title
and description).
My form contains the three fields: title, description, and
uploaded_data.

When I submit a form with a valid uploaded file and invalid title or
description the errors are displayed correctly, however the valid
uploaded picture is also removed. Next the user has to select and
upload the picture all over again.

Is there a way to avoid this and have the picture saved? So he can
enter another picture just if he wants to change it.

If validations fail record will not be saved. That’s how it works. Also provide instructions for the user in the form to make them enter valid values.