Fix column shift card loss

[sirkitree]

Currently, when you move a column to the right, it loses it's cards, but regains them when moving back to the left.

Ideally a column would retain all of it's cards when moving around.

[xela-zone]

this is related to uiX masks being weird, i'm unsure of any ways to fix this.

the issue resolves itself when duplicating or otherwise refreshing the canvas.