[GAMEPLAY] Two Darius bugs

I'm going to talk about 2 Darius bugs, maybe they are not bugs from Darius, but they happened to me playing Darius, so I will post them.

1.-The first bug happened to me using Darius against a Fiora, it was a normal match at the top, until I engaged on Fiora hitting her with 2 auto attacks and then using my Q, trying to heal myself. When I used my Q Fiora used her W, stopping the incoming damage, but after hitting her with the Q I realize that I was running faster, then I saw that it was the Stormrider's Surge. This bug happened to me twice, and both times using Darius. I think it's a bug just because I could trigger my Keystone dealing less damage that the keystone needs. Maybe this bug happens to other champs using this keystone. Summary: I could use my keystone when my damage got blocked.

2.-This other one, happened to me, again with Darius. This bug is pretty simple, and I don't know if it can be treat a a bug. The fact is that few days ago Riot fixes a bug that when Darius E grabbed enemies through thin walls, the enemies ended up in the other side of the wall. So knowing that, something like that happened whe I grabbed an enemy Olaf and then he used his ult, let me explain, Olaf got grabbed by me, I could move him and then he used his ult like nothing happened and he could run away happy. This bug just happened to me once.