### Godot version

v4.0.beta9.official [e780dc332]

### System information

macOS Ventura 13.0.1 (Intel), Radeon Pro 580 8 GB

### Issue description

When setting the size of a SubViewport (that is inside the corresponding SubViewportContainer) to zero, the editor crashes instantly.

**But it only happens when I set the size of the SubViewport by sliding the values.**

You can see what happens in this video:


https://user-images.githubusercontent.com/91340577/209363880-503d3dff-80e1-4e9e-bb57-d059fdbfeed0.mp4

At the end of the video you can see the crash message of macOS reading: _Godot quit unexpectedly._

If I write the number zero (or any negative) to the values of the SubViewport size, the crash doesn't happens.

### Steps to reproduce

1. Add a SubViewportContainer
2. Add a SubViewport as a child of the SubViewportContainer
3. Set the size of the SubViewport to zero **by sliding** the X or the Y value.

### Minimal reproduction project

1. Open the project
2. Go to the Control.tscn scene
3. Select the SubViewport node
4. Slide the X or Y values of the size to zero

[SubViewportCrash.zip](https://github.com/godotengine/godot/files/10296101/SubViewportCrash.zip)
if (!can_draw_3d) {
					RSG::scene->render_empty_scene(p_viewport->render_buffers, p_viewport->scenario, p_viewport->shadow_atlas);
				} else {
					_draw_3d(p_viewport);
				}
				scenario_draw_canvas_bg = false;
			}
		}
		if (scenario_draw_canvas_bg) {
			
			
			RSG::texture_storage->render_target_do_clear_request(p_viewport->render_target);
			if (!can_draw_3d) {
				RSG::scene->render_empty_scene(p_viewport->render_buffers, p_viewport->scenario, p_viewport->shadow_atlas);
			} else {
				_draw_3d(p_viewport);
			}
		}
	}
	if (RSG::texture_storage->render_target_is_clear_requested(p_viewport->render_target)) {
		
		RSG::texture_storage->render_target_do_clear_request(p_viewport->render_target);
	}
	if (p_viewport->measure_render_time) {
		String rt_id = "vp_end_" + itos(p_viewport->self.get_id());
		RSG::utilities->capture_timestamp(rt_id);
		timestamp_vp_map[rt_id] = p_viewport->self;
	}
}
void RendererViewport::draw_viewports() {