config schema for hierarchy creates loop

This causes issues with config_inspector which outputs the following when inspecting facet configs:

The LangcodeRequiredIfTranslatableValues constraint can only operate on the root object being validated.

Seems to relate to 🐛 The LangcodeRequiredIfTranslatableValues constraint can only operate on the root object being validated. Needs work but the reporter may also be facing another issue (from another module/schema definition).

If I understand correctly FacetsHierarchy plugins are processors which may have configuration (forms).
So the type should be plugin.plugin_configuration.facets_hierarchy.[%parent.type]

I'll create a merge request for 3.x

MR created, here is a static patch which also applies cleanly on 2.0.x

🐛 Config validation error for facets_processor.* Fixed is also related, and also needs to be applied (not released yet)

Commited and pushed to both 2.x and 3.x

Automatically closed - issue fixed for 2 weeks with no activity.