[GAMEPLAY] Kindred doesn't receive credit for a mark if she dies during the "cash-in" animation

See title.

Steps to reproduce:

1. Mark an enemy champ (or jungle monster) and let the mark resolve
2. Fight the enemy champ (or jungle monster) and kill the enemy (or get an assist if it was a champion), then immediately die
3. The marked champ gets grayed out on the passive indicator, but kindred doesn't get a stack for it