pile flip behavior

When I pile up files and flip the pile, close button shifts its position/orientation based pile's location.

For example, if the pile is on left side of the screen, close button appears on right side of the pile, and if the pile is on the right side of the screen, close button appears on left side of the pile.

Although, pile's flip direction stays the same; always from right to left. I think it would be good if the pile flips from left to right if pile is located on the right side of the screen.

Just a thought.