### Godot version

v4.2.rc.custom_build [702227129]

### System information

Godot v4.2.rc (702227129) - Debian GNU/Linux trixie/sid trixie - X11 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 6GB (nvidia) - AMD Ryzen 5 1600 Six-Core Processor (12 Threads)

### Issue description

Found a consistent crash when calling `hide()` from `_notification()`.
It does not happen if the call is deferred.

### Steps to reproduce

The `hide_test.gd` script has a boolean `cause_crash`. If it is true, hovering the mouse over the label crashes without an error in the Godot Editor Console. If it's false it hides the label as expected.

### Minimal reproduction project

[hide_crash.zip](https://github.com/godotengine/godot/files/13452818/hide_crash.zip)

#ifndef _3D_DISABLED
	if (!use_xr) {
#endif
		if (p_allocated) {
			RS::get_singleton()->viewport_set_size(viewport, size.width, size.height);
		} else {
			RS::get_singleton()->viewport_set_size(viewport, 0, 0);
		}
#ifndef _3D_DISABLED
	} 
#endif
	_update_global_transform();
	update_configuration_warnings();
	update_canvas_items();
	for (ViewportTexture *E : viewport_textures) {
		E->emit_changed();
	}
	emit_signal(SNAME("size_changed"));
	Rect2i limit = get_visible_rect();
	for (int i = 0; i < gui.sub_windows.size(); ++i) {
		Window *sw = gui.sub_windows[i].window;
		Rect2i rect = Rect2i(sw->position, sw->size);
		Rect2i new_rect = sw->fit_rect_in_parent(rect, limit);
		if (new_rect != rect) {
			sw->set_position(new_rect.position);
			sw->set_size(new_rect.size);
		}
	}
}
Size2i Viewport::_get_size() const {