Issue with QuickReplace and Undoing

[Leobreaker66]

In creative mode, I quick replaced some grass with a few items from a randomizer bag, I tried to undo it and although it removed the placed blocks, it didn't refill the grass, it just left a hole there.

[Requios]

Undo will now try to replace the previous blocks, if you have those blocks in your inventory. In 2.8.