### Godot version

2992ffd25523cb8b3e0ef1b873c40115b8940178

### System information

Windows 10

### Issue description

Godot crashes randomly within a few seconds after project start when moving with the mouse.

![win_err](https://github.com/godotengine/godot/assets/52464204/1da28596-d95b-40f3-b32f-12219ec02c5d)

Started after recent merge of https://github.com/godotengine/godot/pull/67791.
I can confirm that reverting the pr fixes the crashes.

### Steps to reproduce

see desc

### Minimal reproduction project

N/A
ERR_READ_THREAD_GUARD;
	Ref<Theme> default_theme = ThemeDB::get_singleton()->get_default_theme();
	p_list->push_back(PropertyInfo(Variant::NIL, GNAME("Theme Overrides", "theme_override_"), PROPERTY_HINT_NONE, "theme_override_", PROPERTY_USAGE_GROUP));
	{
		List<StringName> names;
		default_theme->get_color_list(get_class_name(), &names);
		for (const StringName &E : names) {
			uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
			if (theme_color_override.has(E)) {
				usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
			}