### Godot version

v4.1.beta1.official [828ec2c5d]

### System information

Windows 11 Home, v4.1.beta1.official [828ec2c5d], All Renderers, NVidia GeForce RTX 3060 Ti,  Drivers 535.98

### Issue description

When enabling the "Y Sort Enabled" ordering method for a Sprite2D, the sprite will be rendered entirely black.

![grafik](https://github.com/godotengine/godot/assets/29011290/6fa4da16-d9a5-4c3b-a9e4-c1bba53c2183)
![grafik](https://github.com/godotengine/godot/assets/29011290/cbf499ae-f3f7-4c07-98b2-a1a667d810c2)


### Steps to reproduce

Simply create a Sprite2D Node, assign any texture to it and activate Y-Sorting

### Minimal reproduction project

[GDB_4.1_ysort.zip](https://github.com/godotengine/godot/files/11704361/GDB_4.1_ysort.zip)

uint32_t pc = p_points.size();
	ERR_FAIL_COND(pc == 0 || pc > 4);
	Item *canvas_item = canvas_item_owner.get_or_null(p_item);
	ERR_FAIL_COND(!canvas_item);
	Item::CommandPrimitive *prim = canvas_item->alloc_command<Item::CommandPrimitive>();
	ERR_FAIL_COND(!prim);
	for (int i = 0; i < p_points.size(); i++) {
		prim->points[i] = p_points[i];
		if (i < p_uvs.size()) {
			prim->uvs[i] = p_uvs[i];
		}
		if (i < p_colors.size()) {
			prim->colors[i] = p_colors[i];
		} else if (p_colors.size()) {
			prim->colors[i] = p_colors[0];
		} else {
			prim->colors[i] = Color(1, 1, 1, 1);
		}
	}
	prim->point_count = p_points.size();
	prim->texture = p_texture;
}
void RendererCanvasCull::canvas_item_add_polygon(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, RID p_texture) {