Locationapi and file form fields

Been scratching my head for a couple days now on this.

I'm trying to add a file field to a location cck field useing locationapi. Locationapi's operation 'save' is not called unless the user changes the value of a field other than my file field. I've tryed returning FALSE in locationapi's 'isunchanged' operation but no success.

I think one of the problems is the file fields value ends up in a $_FILES array and not within the $location array (the first argument in locationapi).

Has anyone run into this problem Thanks.