[GAMEPLAY] Ryze Q not resetting bug

This bug is caused by Ryze's E being cancelled because his target dies during the short channel part that almost all skills have When Ryze then successfully E's a target immediately after, his Q remains on cooldown. This bug has either existed before or it has existed for a long time, because this exact bug was around in the past.

Replicating this bug:

1. go into a practice tool game
2. either be near minions so you can purposefully have a minion die during your E channel in a future step or spawn a practice dummy and make sure you know the key command to delete the dummies.
3. press Q to set it on cooldown.
4. now E onto the minion that is about to die such that your E gets cancelled before it goes off and your E does not go on cooldown. If you are using the dummies, input the key command to delete them during the channel so your E does not go on cooldown. Your Q cooldown should reset at this point even though your E did not fully go.
5. now actually E another target.
6. you will see that your E has successfully been used yet your Q is back on cooldown.

There are other ways to replicate this bug and this video shows one of those other ways, but I described a method that I know and that has a 100% replication rate.

Edit: I believe the issue is that Q's cooldown is reset during E's channel so it can be reset while E does not go on cooldown. I don't know why when you use E again it puts Q back on cooldown. I also think this may have to do with the input buffering change several patches ago to Ryze and Karthus.