[GAMEPLAY] Kalista With Guardian Angel

I was recently in a match as and near the end of the game and I were full build. When I jumped on and killed her, her activated. However, as I was waiting for her to revive so I could finish her off, she kept auto attacking while being resurrected and killed both and I. Unfortunately I was not recording at the time, but if you want to try to recreate the situation and test if the bug is legitimate, I have provided the link to the match history. Finally, she was in the middle of an auto attack and dash when her went off.