Third party settings at search api index yaml file lost

[abel-santos-corral]

Problem
At several projects we started using oe_list_pages along to oe_whitelabel beta 5. We have seen that until version 0.16.0 at search api index there's no configuration for list pages and that all content types are offered at facets.

From version 0.17.0 we have seen that list pages includes hooks at oe_list_pages.module to provide with a variable at Search API index's form. Our problem is that when we save (either we don't modify anything or we do) we lose this configuration:
'''
oe_list_pages:
lists_pages_index: true
'''
We debugged a little and we pass through oe_list_pages_form_search_api_index_form_entity_builder, but when the save node finishes the third party settings is lost and we have the list pages deactivated for the search index and the related facets broken because the source has been lost.

I tried something on my local because the solr config was there after saving: remove module search_api_solr and try again. Then the third party settings of oe_list_pages again work fine.

Please, check if at oe_list_pages_form_search_api_index_form_entity_builder if something at oe_list_pages must be done....if not we'll need to open an issue at search_api_solr because several projects at Agencies will have both oe_list_pages and solr and we need to find a solution.

Many thanks in advance and sorry for the inconvenience.

Regards
Abel S.

Modules && Themes
The list of modules we're using:

• search_api
• search_api_solr
• oe_list_pages
  Theme:
• oe_whitelabel beta4