lissandra, poppy and lux bugs.

-You can zhonyas while in lissandras ulti. -Ezreal can blink away while in Lissandras w, i don't know if other champions can. -rengar can jump to poppy from a brush while poppy's w is active. -If lux starts channeling her ulti and is knocked up or stunned, it will still go of.

I'm not sure if theses are bugs or meant to be, but i think they should either fix these "bugs" or change them.