shaco shop clone bug

Steps to recreate: When you die and shaco clone is still alive... and you buy something in shop... when clone dies you are not permitted to undo your shop purchase even though you have not left the spawn because you are dead or even when you revive you still can not undo your purchase.. quite annoying and frustrating when it happens if you accidentally buy an item you do not need. plz fix

on another note shaco's ult seems to be unresponsive at times when targetting enemies or minions.

another side note... I dont know what riot changed this season with champion pathing but it seems to have gotten worse.. I see and experience so many times when I click the map or location one way (thinking that my champ will run around the safe way or the intended way) and then the champ proceeds to walk into enemy tower range. also last season when you would click on the other side of a wall to ward or auto attack with a champ... your champion would walk up to the wall and auto or ward etc... this season the champion struggles to find pathing and attempts to walk around the huge structure before warding or autoattacking (many times the champ will stutter in place not being able to do anything walking back and forth as if confused making a simple point and click task impossible to execute) It has been frustrating and inconvenient.