If a user has circulation permissions, they can edit the lost/damaged/withdrawn statuses of an item on moredetail.pl (the items tab in the catalog). However, they cannot edit the public and non-public notes for that item. Those notes are only editable on this if one also has edit_items permission, which opens up a lot more actions. I feel the editing of these notes from moredetail should also fall under circulation permissions.
This would be very useful to us, as circ staff may need to add notes to items where a problem cannot be addressed at the time. For example, if a piece of a multi-part set is missing, but the patron still wants to check the item out. With a note on the item, when the item is returned staff will know that it was missing when the current patron checked it out.