Strange behaviour on delete

[Alex293]

If i delete a card while it's flipped the card will disappear and another card will be considered as flipped and will be flipped back. Everything works as expected but we can see a flip animation on the top stacked card which feels weird.

[hfrahmann]

New code to delete a card. The completion block of _ flipRevealedCardBack_ is also called when the card is not flipped.

var index = 0
if(self.cardCollectionViewLayout!.revealedIndex >= 0) {
    index = self.cardCollectionViewLayout!.revealedIndex
}
self.cardCollectionViewLayout?.flipRevealedCardBack(completion: {
    self.colorArray.remove(at: index)
    self.collectionView?.deleteItems(at: [IndexPath(item: index, section: 0)])
    self.cardCollectionViewLayout?.unrevealCard(completion: {
        if(self.colorArray.count == 1) {
            self.cardCollectionViewLayout?.revealCardAt(index: 0)
        }
    })
})

It should now look like this: