Similar entity_type_id can lead to a remove of the other one

Following example: if a entity with id 'entity_projectext' and 'entity_project' exist, but only 'entity_projectext' should be in indexed.

Problem: Submitting the "SimplesitemapEntitiesForm", it loops all available entity types and enable (create config file, ...) or disable (delete config file, ...). For accessing the correct config files, you get them with `$this->configFactory->listAll`. This method returns all config files with the given parameter, but not exactly one, all which has the given parameter in their name.
"simple_sitemap.bundle_settings.entity_projectext.entity_projectext" -> correct
"simple_sitemap.bundle_settings.entity_project.entity_project" -> this will find 'entity_project' and 'entity_projectext'

Best regards,
Nino