Scaling a HeightMapShape CollisionShape (3D) results in incorrect collision calculations

[PonasKovas]

Godot version:
Godot 3.2.3

OS/device including version:

Arch Linux

Issue description:
When you scale the transform of a CollisionShape, that has a HeightMapShape assigned as the shape, the scaling doesn't seem to make any difference in physics, only rendering.

Minimal reproduction project:
scaling-bug.zip

[Calinou]

Collision shapes aren't meant to be scaled. This isn't exclusive to HeightMapShape.

[PonasKovas]

I thought about that but it seems to work with BoxShape

[PonasKovas]

Either way, I don't know about the technical side but if they're not meant to be scaled that seems kind of counter-intuitive and can be troublesome for new users, in my opinion.

[Calinou]

Either way, I don't know about the technical side but if they're not meant to be scaled that seems kind of counter-intuitive and can be troublesome for new users, in my opinion.

See #32975.

Either way, I'll close this as a duplicate of #41685.