[#71919158] Hand Over: autocomplete finds models even if all items are not borrowable

Squashed commit of the following:

commit 6056cae95e29510012241d95cc67456384fdf4c9
Author: Franco Sellitto <franco.sellitto@zhdk.ch>
Date:   Wed Jun 4 15:10:31 2014 +0200

    Hand Over: autocomplete finds models even if all items are not borrowable