RectLight barn angle ruins rectangle ratio

So I was using RectLight and I noticed that whenever I use barn angle it ruins the Source width and height the further you turn it until it’s longer a rectangle and automatically turns into a perfect square where all sides are equal. It kind of ruins it for me when it’s supposed to keep its ratio while expanding instead of changing shape, not to mention that there’s no way to change this as far as I’m aware…

Basically I need it to either keep it’s ratio or have separate height angle and width angle…

still no answer?

this stupid light just wont stay as a rectangle as its supposed to when barn angle is used, instead it always turns into a perfect square with equal sides instead of all sides expanding equally.