When using the hide_1_result_facet processor in a Facets view filter, schema validation fails with errors like:
views.view.demo:display.default.display_options.filters.facets_demo_filter.facet.processor_configs.hide_1_result_facet.settings missing schema
Enable the hide_1_result_facet processor in a facet filter by enabling the 'Hide facet with 1 result' setting.
Try to save the view.
Observe missing schema errors.
Add a schema definition for the processor under facets.processor.schema.yml.
Active
3.0
Code
Actually, a few more are missing, see #3544226-5: Misplaced schema definitions (wrong submodule) →