### Godot version

v4.2.rc2.official [1ba920fad]

### System information

Godot v4.2.rc2 - macOS 14.1.1 - Vulkan (Forward+) - integrated Apple M1 - Apple M1 (8 Threads)

### Issue description

Crash when trying to use "cell_quadrant_size".

The same project works without problems in 4.1.3

### Steps to reproduce

Open the attached project and run it, it'll crash. "Invalid get index"
![スクリーンショット 2023-11-27 16 35 07](https://github.com/godotengine/godot/assets/106015575/50d38ceb-0e6e-49bc-96dc-60abd1d2b6c0)

Here is what the same project looks like when launched from 4.1.3:
![image](https://github.com/godotengine/godot/assets/106015575/4e7e1f1a-ad5b-40ab-90ae-35130c803f09)

### Minimal reproduction project

[engage bug 03.zip](https://github.com/godotengine/godot/files/13471828/engage.bug.03.zip)

bool show_navigation = false;
	switch (tile_map_node->get_navigation_visibility_mode()) {
		case TileMap::VISIBILITY_MODE_DEFAULT:
			show_navigation = !Engine::get_singleton()->is_editor_hint() && tile_map_node->get_tree()->is_debugging_navigation_hint();
			break;
		case TileMap::VISIBILITY_MODE_FORCE_HIDE:
			show_navigation = false;
			break;
		case TileMap::VISIBILITY_MODE_FORCE_SHOW:
			show_navigation = true;
			break;
	}
	if (!show_navigation) {
		return;
	}
	
	if (r_cell_data.navigation_regions.is_empty()) {
		return;
	}
	const Ref<TileSet> &tile_set = tile_map_node->get_tileset();
	RenderingServer *rs = RenderingServer::get_singleton();
	const NavigationServer2D *ns2d = NavigationServer2D::get_singleton();
	bool enabled_geometry_face_random_color = ns2d->get_debug_navigation_enable_geometry_face_random_color();
	bool enabled_edge_lines = ns2d->get_debug_navigation_enable_edge_lines();
	Color debug_face_color = ns2d->get_debug_navigation_geometry_face_color();
	Color debug_edge_color = ns2d->get_debug_navigation_geometry_edge_color();
	RandomPCG rand;