Keeping uploads through form errors with attachment_fu?

I’m using attachment_fu. If the user submits a form with a file
attachment and validation fails for some reason not related to the
attachment, he is currently forced to choose and upload the file again.
Is there a way to avoid this?

The old FileColumn (
http://www.kanthak.net/opensource/file_column/index.html ) solves this
according to a comment I’ve read in
http://giantrobots.thoughtbot.com/2008/3/18/for-attaching-files-use-paperclip
I wonder if it’s possible to achieve the same with attachment_fu.

xavi

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