Zilean Passive

Very happy to see a few Zilean bugs fixed. BUT there is one issue I have with his passive. Clicking an allied champion who is out of range will cause Zilean to stop movement all together. Causing you to lose distance on an ally who most of the time doesn't realize you are trying to level them up. Half the time I have to speed myself up to get into range. This is extremely problematic in laning phase when I'm trying to level my adc, but get stuck standing still with my pants down (even before the channeling time). There are other times when out of range of my passive target where I miss out because of this delay, and have to wait for the next level. I feel like it would operate a lot smoother if it were "input buffered" allowing Zilean to either continue movement towards his target OR stopping the target if within a certain range, preferably the former. In this way, Zilean can save his precious time.