### 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)

ERR_MAIN_THREAD_GUARD;
	if (p_enable == camera_3d_override) {
		return;
	}
	if (p_enable) {
		camera_3d_override.rid = RenderingServer::get_singleton()->camera_create();
	} else {
		RenderingServer::get_singleton()->free(camera_3d_override.rid);
		camera_3d_override.rid = RID();
	}
	if (p_enable) {
		RenderingServer::get_singleton()->viewport_attach_camera(viewport, camera_3d_override.rid);
	} else if (camera_3d) {
		RenderingServer::get_singleton()->viewport_attach_camera(viewport, camera_3d->get_camera());
	} else {
		RenderingServer::get_singleton()->viewport_attach_camera(viewport, RID());
	}
}
void Viewport::set_camera_3d_override_perspective(real_t p_fovy_degrees, real_t p_z_near, real_t p_z_far) {