KinematicCharacterController doesn't respect max_slope_climb_angle

[emiosproj]

How to reproduce:
Set max_slope_climb_angle.
Translate the controller with no Up force into a slope that is of greater angle than max_slope_climb_angle.

Expected:
If the slope is a higher angle than max_slope_climb_angle we stop like its a wall
Actual:
KinematicCharacterController translates us up the slope.

Here is the sample code that can be used to demonstrate this behavior:
#532

[ThierryBerger]

Some important information: the character controller from rapier reacts correctly to a slope they cannot climb.
^ That means the bug is either within bevy_rapier or on its example.

Wild guesses, it might or might not be what's happening, but it could help to verify that theory:

it might be related to system ordering and transform propagation:

• bevy user sets the desired transform for the kinematic controller
• bevy_rapier reads that desired transform, infers the desired movement and runs the character_solve_collision etc
• bevy user reads the kinematic controller output and player input, and sets that to the desired transform
• ⚠️ bevy_rapier detects the globalTransform has changed, and updates the internal rigidbody