[GAMEPLAY] Titanic Hydra doesn't reset Mordekaiser's basic attack timer while using Mace of Spades

The idea was that I would be able to activate Cleave on Titanic Hydra to reset my basic attack timer between the 2nd and 3rd hits of Mace Of Spades to get a lot of burst off in a short amount of time. However, when I tested it, it didn't reset the basic attack timer. Here's a timeline for more clarity:

1. Basic attack
2. Activate Q, Mace of Spades for basic attack reset (first hit of Q)
3. Basic attack (second hit of Q)
4. Activate Cleave on Titanic hydra for basic attack reset before 3rd hit of Q --- Doesn't work; I have to wait for the next basic attack

There was nothing in the tooltip, the wiki, or any patch notes that implied this type of interaction, so I assume it's a bug.

Thank you for reading!