When an item that was formerly checked out to a user is deleted, it leaves an empty entry in their circulation history in the OPAC. Star ratings and date will display, the rest of the cells, including the title information, will be empty. To test: * Activate opacreadinghistory * Check out an item to your user * Confirm circulation history in OPAC shows it * Check in the item and delete it * Verify that now the reading history has an (almost) empty line