### 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)

if (is_embedding_subwindows()) {
		for (int i = gui.sub_windows.size() - 1; i >= 0; i--) {
			Window *sw = gui.sub_windows[i].window;
			Rect2 swrect = Rect2(sw->get_position(), sw->get_size());
			Rect2 swrect_border = swrect;
			if (!sw->get_flag(Window::FLAG_BORDERLESS)) {
				int title_height = sw->theme_cache.title_height;
				int margin = sw->theme_cache.resize_margin;
				swrect_border.position.y -= title_height + margin;
				swrect_border.size.y += title_height + margin * 2;
				swrect_border.position.x -= margin;
				swrect_border.size.x += margin * 2;
			}
			if (swrect_border.has_point(p_pos)) {
				if (gui.mouse_over) {