Kinematics body regression when using raycast collision shapes.

[HungryProton]

Godot version:
3.2.git
Commit causing the regression : a9b5dc5

OS/device including version:
Ubuntu 20.04

Issue description:
When using Bullet, kinematics body ignores the ray collision shapes when using move_and_slide.
Using move_and_collide makes it collide at the beginning of the ray instead of the end.

Steps to reproduce:

• Create a kinematic body with a ray collision shape
• Move it towards another physic body with move_and_collide: The collision happens at the wrong end
• Move it with move_and_slide: The collision is ignored.

Minimal reproduction project:
minimal_project.zip

Motion happens in the gravity.gd script.

[akien-mga]

Commit causing the regression : a9b5dc5

That's the cherry-pick for #41426, CC @madmiraal @AndreaCatania.

[HungryProton]

In the minimal project I sent, the collision shape is rotated. I used the 3D gizmo to make it point downwards and the transform matrix looks like this:

But! If I click the revert icon and manually type 90° in the x axis rotation, the transform matrix is slightly different:

(Notice the -0 instead of 0)
I have no idea why it makes a difference but the collision happens properly in this case.

[madmiraal]

Fixed with #42500.

Interestingly, -0 should have caused it to fail (flip the RayCast) too, but Bullet didn't think that it was close enough to zero. 😕 So maybe something to look into too.