Misleading warning when the z scale of a collider is 0 on 2d

[janTatesa]

Let's say we have this code snippet

use avian2d::prelude::*;
use bevy::prelude::*;

fn main() {
    App::new()
        .add_plugins((DefaultPlugins, PhysicsPlugins::default()))
        .add_systems(Startup, setup)
        .run();
}

fn setup(mut commands: Commands) {
    commands.spawn((
        Transform {
            translation: Vec3::ZERO,
            rotation: Quat::IDENTITY,
            scale: vec3(50.0, 50.0, 0.0),
        },
        RigidBody::Dynamic,
        Collider::circle(50.0),
        ColliderDensity(1.0),
    ));
}

Running this code snippet we get

avian2d::dynamics::rigid_body::mass_properties: Dynamic rigid body 84v0 has no mass or inertia. This can cause NaN values. Consider adding a MassPropertiesBundle or a Collider with mass.

However, this is misleading as we have a mass. The actual problem is the fact that the z scale is 0. I think the library should warn the user when the z scale is 0.