[GAMEPLAY] Brand ult fizzles on Kalista ult (should acquire a new target)

As of patch 5.11 Brand ult is supposed to pick a new target if the original target becomes invalid (hourglass, etc). However, when Kalista makes her support untargetable, Brand's ult just fizzles.

1. Brand ult on a support
2. Kalista ult on the support before it hits.

I also found reference of someone else experiencing this here: https://www.reddit.com/r/leagueoflegends/comments/3acp89/if_kalista_ults_an_ult_target_of_brands_ult_the/