### 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)
RID *vp = timestamp_vp_map.getptr(p_timestamp);
	if (!vp) {
		return;
	}
	Viewport *viewport = viewport_owner.get_or_null(*vp);
	if (!viewport) {
		return;
	}
	if (p_timestamp.begins_with("vp_begin")) {
		viewport->time_cpu_begin = p_cpu_time;
		viewport->time_gpu_begin = p_gpu_time;
	}
	if (p_timestamp.begins_with("vp_end")) {
		viewport->time_cpu_end = p_cpu_time;
		viewport->time_gpu_end = p_gpu_time;
	}
}
void RendererViewport::set_default_clear_color(const Color &p_color) {