If you quickly place and remove water on top of a magma block, you can keep the water in the cube and create a clone of the water

There is a bug where if you quickly place and remove water on top of a magma block, you can manage to keep the water in the cube and create like a clone of the water, where it does not spread to the sides, And if you grab it with another cube, it doesn't clone itself. It's not a bug that gives you an advantage, as far as I know (although it could possibly be used as a mob-drowning machine).Either way, I think the bug should be fixed. Thanks.