Receiving a Total Biscuit in ARAM negates Shop Undo

Repro Steps:

1. Equip Biscuit Delivery inspiration rune in champion selection of an ARAM game.
2. Once loaded in-game, buy any item in the Shop without leaving fountain or closing Shop menu.
3. After 3 mins, you will receive a Total Biscuit of Everlasting.
4. Notice, you can no longer click the "UNDO" button to undo the purchase of the item.

Impact: Low