Duplicate immediate mode rendering when creating objects at runtime

While creating objects at runtime that contains an immediate mode rendering script, I get duplicate rendering for as many objects as I have (i.e. if I add 5 objects at runtime, I'll end up with each object being rendered 5 times, so it will be 25 renders total).

Steps:

1. Create a new project using Unity 2021.1.15f1 and URP

2. To simplify things, create an empty scene, add a Camera at [0, 0, -2]

3. Create an empty GameObject and add the following script:

using System.Collections;
using System.Collections.Generic;
using Shapes;
using UnityEngine;
using ScaleMode = Shapes.ScaleMode;

public class ShapesTest : ImmediateModeShapeDrawer {
	[SerializeField]
	private float dotRadius = 4.0f;

	[SerializeField]
	private float innerRadius = 8.0f;
	[SerializeField]
	private float innerThickness = 2.0f;

	[SerializeField]
	private float outerRadius = 12.0f;
	[SerializeField]
	private float outerThickness = 2.0f;

	public Color color = Color.magenta;

	public override void DrawShapes(Camera cam) {
		using (Draw.Command(cam)) {
			Draw.ResetAllDrawStates();
			Draw.BlendMode = ShapesBlendMode.Additive;
			Draw.Thickness = innerThickness;
			Draw.LineGeometry = LineGeometry.Flat2D;
			Draw.SizeSpace = ThicknessSpace.Pixels;
			Draw.ThicknessSpace = ThicknessSpace.Pixels;
			Draw.RadiusSpace = ThicknessSpace.Pixels;
			Draw.Position = transform.position;
			Draw.ScaleMode = ScaleMode.Uniform;
			Draw.Color = color;

			Draw.Disc(Vector3.zero, Quaternion.identity, dotRadius);

			Draw.Ring(Vector3.zero, Quaternion.identity, innerRadius);

			Draw.Thickness = outerThickness;

			Draw.Ring(Vector3.zero, Quaternion.identity, outerRadius);
		}
	}
}

4. Run the scene

5. While running, clone the object with the script 4 times (or just create a new one and attach the script, cloning the object is not the issue as far as I can see)

6. Run the Frame debugger, and check Shapes command, you should see the object being rendered 25 times instead of the expected 5