[GAMEPLAY] 6.20 Nunu Ultimate Bug

Currently, the slow from Nunu's ult will persist even if it is cancelled or interrupted, and even when enemy champions leave the ult circle. The debuff applied by Nunu's ultimate should be removed when these events occur.

Patch notes describe the slow as "50%, increasing to 95% over the channel duration", and prior to this patch it did not work like this, so it makes me think it's unintended.

Example links: https://clips.twitch.tv/bestrivenna/AnnoyingSalamanderTooSpicy

https://clips.twitch.tv/rush/AmusedOstrichOptimizePrime (Alistar slowed after ult cancel)

https://clips.twitch.tv/rush/FineVultureKippa (Mordekaiser slowed after ult cancel)