(let ((node-key (funcall key (datum node))))
(cond
((funcall test node-key item-key)
- (return-from find-insertion-point (values node direction-stack item-key)))
+ (return-from find-insertion-point (values node direction-stack node-key)))
((funcall pred item-key node-key)
(push (cons node 'left) direction-stack)
(setf node (left node)))