### 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 (xr_interface->pre_draw_viewport(vp->render_target)) {
				RSG::texture_storage->render_target_set_override(vp->render_target,
						xr_interface->get_color_texture(),
						xr_interface->get_depth_texture(),
						xr_interface->get_velocity_texture());
				
				RSG::scene->set_debug_draw_mode(vp->debug_draw);
				
				_draw_viewport(vp);
				
				Vector<BlitToScreen> blits = xr_interface->post_draw_viewport(vp->render_target, vp->viewport_to_screen_rect);
				if (vp->viewport_to_screen != DisplayServer::INVALID_WINDOW_ID) {
					if (OS::get_singleton()->get_current_rendering_driver_name() == "opengl3") {
						if (blits.size() > 0) {
							RSG::rasterizer->blit_render_targets_to_screen(vp->viewport_to_screen, blits.ptr(), blits.size());
						}
						RSG::rasterizer->end_frame(true);
					} else if (blits.size() > 0) {
						if (!blit_to_screen_list.has(vp->viewport_to_screen)) {
							blit_to_screen_list[vp->viewport_to_screen] = Vector<BlitToScreen>();
						}
						for (int b = 0; b < blits.size(); b++) {
							blit_to_screen_list[vp->viewport_to_screen].push_back(blits[b]);
						}
					}
				}
			}