Bug Report: Refunding Items Causing Health/Mana resets.

Hey guys, I know this issue has been out for a while, but the fact that it still hasn't been fixed in game after well over a month of it existing has led me to re-post about it in the hopes of getting a response/timeline for a fix from Riot.

The problem is that when you buy something in the store, and then sell it, you are essentially "resetting" your champion to its state before it purchased the previous item. The problem with this is that if you recalled to base at 10 health and mana, purchased an item immediately, healed up and then just before leaving the fountain you re-sell the item, you also lose all the health/mana you had regenerated.

Now you may wonder, okay, who cares, you're at the fountain so heal up!

Well, I have had happen on a couple occasions where I refund an item, have my health drastically dropped JUST as an enemy global ultimate (jinx ult, ezreal ult, karthus ult, draven ult flies through our fountain where I would have been fine if not for this bug.

Yes, this bug is easy to reproduce.

Yes this bug is annoying as hell, particularly against a team with globals or who are pushing into your base to finish the game and you need to refund something.

Why hasn't this been fixed Riot?