Self Quick Cast Prioritizes Not yourself

I know not many players know this or they do but don't care since it doesn't affect them but the self quick cast keybind does not work. What it will do is use the spell on the target the cursor is at. If there is no target there then it will go to yourself (this doesn't happen on the default quick cast). This is to be expected but what is not is if there is an ally champion/turret (if cast to Janna E) then they will recieve the spell rather than Janna. (not that it matters but even if Janna is next to said ally, the ally will get the buff). Not that is a huge bug, but it is 100% a bug that happens every time to me and is often annoying that its been over a year that I have seen this bug and it is still not fixed.