Align Item Editing and Manage Item Dialogs Permissions
Item editing permission organizations are based on the Owning Branch of an item. However, permissions for item editing through the checkout page ('Manage Item Dialogs') are based on the item's Assigned Branch (as well as the check-in branch matching the assigned branch).
We think it makes sense for both these permissions to be aligned to the Owning Branch, otherwise it can leave room for inappropriate changes. For instance, in our consortia some items are owned by one library but lent to others (assigned to their libraries), and this gap has led to item changes by staff that shouldn't have had access to make these changes.