Only one Rose Petal skill is used when all of them are bound to the same key

I bound all three of them on Alt key, because I'm out of more quick-access keys and prefer to use all powers on the same pack anyway.

The problem is, when I press the button only the leftmost skill is ever used, even when other skills have enough petals. I can still trigger them by clicking, but not by pressing the bound button.

The expected behaviour in this scenario would be to allow all ready skills get activated using the same keybind. Being forced to bind three separate keys is very inconvenient when the game is already using so many keys for various purposes.