### Godot version

f73cb4c13d1bc19b044fbef735522e3b0249e8ab

### System information

Windows 10, Vulkan

### Issue description

A CSGPolygon3D node with 'use_collision' on, in Path mode, with a path node assigned, throws the error "Node3D::get_global_transform: Condition "!is_inside_tree()" is true. Returning: Transform3D()" when running (and in some cases when switching scenes).

![image](https://user-images.githubusercontent.com/115422160/211907313-20742234-4a1f-4d94-b573-544b8e1d07ca.png)

~~In this same MRP you can also see a different error, when switching between scenes in the editor, that I've mentioned in https://github.com/godotengine/godot/issues/58869, I can open a separate issue if needed:~~
I've opened a separate issue for this in https://github.com/godotengine/godot/issues/71750.
![image](https://user-images.githubusercontent.com/115422160/211907528-1df7230e-6270-4669-bf44-2ef449eebf1d.png)



### Steps to reproduce

Run the MRP. It's a simple Node3D scene with a CSGPolygon3D and Path3D as children.

### Minimal reproduction project

[transform bug.zip](https://github.com/godotengine/godot/files/10395682/transform.bug.zip)

flip_faces = false;
}
CSGBrush *CSGMesh3D::_build_brush() {
	if (!mesh.is_valid()) {
		return memnew(CSGBrush);
	}
	Vector<Vector3> vertices;
	Vector<bool> smooth;
	Vector<Ref<Material>> materials;
	Vector<Vector2> uvs;
	Ref<Material> base_material = get_material();
	for (int i = 0; i < mesh->get_surface_count(); i++) {
		if (mesh->surface_get_primitive_type(i) != Mesh::PRIMITIVE_TRIANGLES) {
			continue;
		}
		Array arrays = mesh->surface_get_arrays(i);
		if (arrays.size() == 0) {
			_make_dirty();
			ERR_FAIL_COND_V(arrays.size() == 0, memnew(CSGBrush));
		}
		Vector<Vector3> avertices = arrays[Mesh::ARRAY_VERTEX];
		if (avertices.size() == 0) {
			continue;
		}
		const Vector3 *vr = avertices.ptr();
		Vector<Vector3> anormals = arrays[Mesh::ARRAY_NORMAL];
		const Vector3 *nr = nullptr;
		if (anormals.size()) {
			nr = anormals.ptr();
		}