Items in creative inventory can be unaffected by the button to clear the inventory

With the new mechanic of hotbar saving, items can be ignored by the button to clear the inventory.

Way to reproduce:

-fill completely a hotbar with differents items
-save this hotbar in a save slot
-middle click on a block to get a new item in a slot of your hotbar, the previous item will go in your inventory
-reload your saved hotbar, you now have your hotbar and a copy of one of its item in your inventory.
-clear your inventory, your hotbar is clear, but the item in your inventory will still be there.